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  <link:roleRef roleURI="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_detailJob" xlink:type="simple" xlink:href="cor-all-oim-2026-12-31.xsd#link_bus_detailJob"/>
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  <link:roleRef roleURI="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_detailXbrl" xlink:type="simple" xlink:href="cor-all-oim-2026-12-31.xsd#link_cor_detailXbrl"/>
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  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
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    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_accountingEntries" xlink:label="h_cor_accountingEntries" xlink:title="h_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_accountingEntries" xlink:to="h_cor_accountingEntries" xlink:title="all (has-hypercube): p_cor_accountingEntries to h_cor_accountingEntries" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
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    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_accountingEntries" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_accountingEntries to d_cor_accountingEntries" order="1"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_documentInformation" xlink:from="p_cor_accountingEntries" xlink:to="p_cor_documentInformation" xlink:title="domain-member: p_cor_accountingEntries to p_cor_documentInformation in link_cor_documentInformation" order="2"/>
    <!-- p_cor_accountingEntries to targetRole link_cor_entityParty -->
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_entityParty" xlink:from="p_cor_accountingEntries" xlink:to="p_cor_entityParty" xlink:title="domain-member: p_cor_accountingEntries to p_cor_entityParty in link_cor_entityParty" order="3"/>
    <!-- p_cor_accountingEntries to targetRole link_cor_entryHeader -->
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_entryHeader" xlink:from="p_cor_accountingEntries" xlink:to="p_cor_entryHeader" xlink:title="domain-member: p_cor_accountingEntries to p_cor_entryHeader in link_cor_entryHeader" order="4"/>
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    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_documentInformation" xlink:label="p_cor_documentInformation" xlink:title="p_cor_documentInformation"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_documentInformation" xlink:label="h_cor_documentInformation" xlink:title="h_cor_documentInformation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_documentInformation" xlink:to="h_cor_documentInformation" xlink:title="all (has-hypercube): p_cor_documentInformation to h_cor_documentInformation" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_documentInformation" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_documentInformation to d_cor_accountingEntries" order="1"/>
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    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_documentInformationDocumentType" xlink:label="cor_documentInformationDocumentType" xlink:title="cor_documentInformationDocumentType Document Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_documentInformationDocumentType" xlink:title="domain-member: p_cor_documentInformation to cor_documentInformationDocumentType Document Type" order="2"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_auditNumber" xlink:label="cor_auditNumber" xlink:title="cor_auditNumber Audit Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_auditNumber" xlink:title="domain-member: p_cor_documentInformation to cor_auditNumber Audit Number" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_revisesAuditNumber" xlink:label="cor_revisesAuditNumber" xlink:title="cor_revisesAuditNumber Revises Audit Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_revisesAuditNumber" xlink:title="domain-member: p_cor_documentInformation to cor_revisesAuditNumber Revises Audit Number" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_actionToTakeWithPreviousData" xlink:label="cor_actionToTakeWithPreviousData" xlink:title="cor_actionToTakeWithPreviousData Action to Take with Previous Data"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_actionToTakeWithPreviousData" xlink:title="domain-member: p_cor_documentInformation to cor_actionToTakeWithPreviousData Action to Take with Previous Data" order="5"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_periodUnit" xlink:title="domain-member: p_cor_documentInformation to cor_periodUnit Period Unit" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_periodUnitDescription" xlink:label="cor_periodUnitDescription" xlink:title="cor_periodUnitDescription Period Unit Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_periodUnitDescription" xlink:title="domain-member: p_cor_documentInformation to cor_periodUnitDescription Period Unit Description" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_sourceApplication" xlink:label="cor_sourceApplication" xlink:title="cor_sourceApplication Source Application"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_sourceApplication" xlink:title="domain-member: p_cor_documentInformation to cor_sourceApplication Source Application" order="15"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_targetApplication" xlink:label="cor_targetApplication" xlink:title="cor_targetApplication Target Application"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_targetApplication" xlink:title="domain-member: p_cor_documentInformation to cor_targetApplication Target Application" order="16"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_defaultCurrency" xlink:label="cor_defaultCurrency" xlink:title="cor_defaultCurrency Default Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_defaultCurrency" xlink:title="domain-member: p_cor_documentInformation to cor_defaultCurrency Default Currency" order="17"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_taxInclusion" xlink:label="cor_taxInclusion" xlink:title="cor_taxInclusion Tax Inclusion"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_documentInformation" xlink:to="cor_taxInclusion" xlink:title="domain-member: p_cor_documentInformation to cor_taxInclusion Tax Inclusion" order="18"/>
    <!-- p_cor_documentInformation to targetRole link_lnk_summaryReportingTaxonomies -->
    <link:loc xlink:type="locator" xlink:href="../../lnk/lnk-oim-2026-12-31.xsd#p_lnk_summaryReportingTaxonomies" xlink:label="p_lnk_summaryReportingTaxonomies" xlink:title="p_lnk_summaryReportingTaxonomies Summary Reporting Taxonomies"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_lnk_summaryReportingTaxonomies" xlink:from="p_cor_documentInformation" xlink:to="p_lnk_summaryReportingTaxonomies" xlink:title="domain-member: p_cor_documentInformation to p_lnk_summaryReportingTaxonomies in link_lnk_summaryReportingTaxonomies" order="19"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_lnk_summaryReportingTaxonomies">
    <!-- p_lnk_summaryReportingTaxonomies all (has-hypercube) h_lnk_summaryReportingTaxonomies link_lnk_summaryReportingTaxonomies -->
    <link:loc xlink:type="locator" xlink:href="../../lnk/lnk-oim-2026-12-31.xsd#p_lnk_summaryReportingTaxonomies" xlink:label="p_lnk_summaryReportingTaxonomies" xlink:title="p_lnk_summaryReportingTaxonomies"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_lnk_summaryReportingTaxonomies" xlink:label="h_lnk_summaryReportingTaxonomies" xlink:title="h_lnk_summaryReportingTaxonomies"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_lnk_summaryReportingTaxonomies" xlink:to="h_lnk_summaryReportingTaxonomies" xlink:title="all (has-hypercube): p_lnk_summaryReportingTaxonomies to h_lnk_summaryReportingTaxonomies" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_lnk_summaryReportingTaxonomies" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_lnk_summaryReportingTaxonomies to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_lnk_summaryReportingTaxonomies" xlink:label="d_lnk_summaryReportingTaxonomies" xlink:title="d_lnk_summaryReportingTaxonomies"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_lnk_summaryReportingTaxonomies" xlink:to="d_lnk_summaryReportingTaxonomies" xlink:title="hypercube-dimension: h_lnk_summaryReportingTaxonomies to d_lnk_summaryReportingTaxonomies" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../lnk/lnk-oim-2026-12-31.xsd#lnk_summaryReportingTaxonomyId" xlink:label="lnk_summaryReportingTaxonomyId" xlink:title="lnk_summaryReportingTaxonomyId Summary Reporting Taxonomy ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_lnk_summaryReportingTaxonomies" xlink:to="lnk_summaryReportingTaxonomyId" xlink:title="domain-member: p_lnk_summaryReportingTaxonomies to lnk_summaryReportingTaxonomyId Summary Reporting Taxonomy ID" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../lnk/lnk-oim-2026-12-31.xsd#lnk_summaryReportingTaxonomySchemaReferenceHrefAttribute" xlink:label="lnk_summaryReportingTaxonomySchemaReferenceHrefAttribute" xlink:title="lnk_summaryReportingTaxonomySchemaReferenceHrefAttribute Summary Reporting Taxonomy Schema Reference Href Attribute"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_lnk_summaryReportingTaxonomies" xlink:to="lnk_summaryReportingTaxonomySchemaReferenceHrefAttribute" xlink:title="domain-member: p_lnk_summaryReportingTaxonomies to lnk_summaryReportingTaxonomySchemaReferenceHrefAttribute Summary Reporting Taxonomy Schema Reference Href Attribute" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../lnk/lnk-oim-2026-12-31.xsd#lnk_summaryReportingTaxonomyHeader" xlink:label="lnk_summaryReportingTaxonomyHeader" xlink:title="lnk_summaryReportingTaxonomyHeader Summary Reporting Taxonomy Header"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_lnk_summaryReportingTaxonomies" xlink:to="lnk_summaryReportingTaxonomyHeader" xlink:title="domain-member: p_lnk_summaryReportingTaxonomies to lnk_summaryReportingTaxonomyHeader Summary Reporting Taxonomy Header" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../lnk/lnk-oim-2026-12-31.xsd#lnk_summaryReportingTaxonomyDescription" xlink:label="lnk_summaryReportingTaxonomyDescription" xlink:title="lnk_summaryReportingTaxonomyDescription Summary Reporting Taxonomy Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_lnk_summaryReportingTaxonomies" xlink:to="lnk_summaryReportingTaxonomyDescription" xlink:title="domain-member: p_lnk_summaryReportingTaxonomies to lnk_summaryReportingTaxonomyDescription Summary Reporting Taxonomy Description" order="6"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_entityParty">
    <!-- p_cor_entityParty all (has-hypercube) h_cor_entityParty link_cor_entityParty -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_entityParty" xlink:label="p_cor_entityParty" xlink:title="p_cor_entityParty"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_entityParty" xlink:label="h_cor_entityParty" xlink:title="h_cor_entityParty"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_entityParty" xlink:to="h_cor_entityParty" xlink:title="all (has-hypercube): p_cor_entityParty to h_cor_entityParty" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_entityParty" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_entityParty to d_cor_accountingEntries" order="1"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_entityPartyId" xlink:label="cor_entityPartyId" xlink:title="cor_entityPartyId Party ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_entityPartyId" xlink:title="domain-member: p_cor_entityParty to cor_entityPartyId Party ID" order="2"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_entityPartyName" xlink:label="cor_entityPartyName" xlink:title="cor_entityPartyName Party Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_entityPartyName" xlink:title="domain-member: p_cor_entityParty to cor_entityPartyName Party Name" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_entityPartyRole" xlink:label="cor_entityPartyRole" xlink:title="cor_entityPartyRole Party Role"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_entityPartyRole" xlink:title="domain-member: p_cor_entityParty to cor_entityPartyRole Party Role" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_entityPartyBusinessDescription" xlink:label="cor_entityPartyBusinessDescription" xlink:title="cor_entityPartyBusinessDescription Party Business Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_entityPartyBusinessDescription" xlink:title="domain-member: p_cor_entityParty to cor_entityPartyBusinessDescription Party Business Description" order="5"/>
    <!-- p_cor_entityParty to targetRole link_bus_entityPartyPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_entityPartyPhone" xlink:label="p_bus_entityPartyPhone" xlink:title="p_bus_entityPartyPhone Party_ Phone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_entityPartyPhone" xlink:from="p_cor_entityParty" xlink:to="p_bus_entityPartyPhone" xlink:title="domain-member: p_cor_entityParty to p_bus_entityPartyPhone in link_bus_entityPartyPhone" order="6"/>
    <!-- p_cor_entityParty to targetRole link_bus_entityPartyFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_entityPartyFax" xlink:label="p_bus_entityPartyFax" xlink:title="p_bus_entityPartyFax Party_ Fax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_entityPartyFax" xlink:from="p_cor_entityParty" xlink:to="p_bus_entityPartyFax" xlink:title="domain-member: p_cor_entityParty to p_bus_entityPartyFax in link_bus_entityPartyFax" order="7"/>
    <!-- p_cor_entityParty to targetRole link_bus_entityPartyEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_entityPartyEmail" xlink:label="p_bus_entityPartyEmail" xlink:title="p_bus_entityPartyEmail Party_ Email"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_entityPartyEmail" xlink:from="p_cor_entityParty" xlink:to="p_bus_entityPartyEmail" xlink:title="domain-member: p_cor_entityParty to p_bus_entityPartyEmail in link_bus_entityPartyEmail" order="8"/>
    <!-- p_cor_entityParty to targetRole link_bus_organizationIdentifier -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_organizationIdentifier" xlink:label="p_bus_organizationIdentifier" xlink:title="p_bus_organizationIdentifier Organization Identifier"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_organizationIdentifier" xlink:from="p_cor_entityParty" xlink:to="p_bus_organizationIdentifier" xlink:title="domain-member: p_cor_entityParty to p_bus_organizationIdentifier in link_bus_organizationIdentifier" order="9"/>
    <!-- p_cor_entityParty to targetRole link_bus_partyAddress -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyAddress" xlink:label="p_bus_partyAddress" xlink:title="p_bus_partyAddress Party_ Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyAddress" xlink:from="p_cor_entityParty" xlink:to="p_bus_partyAddress" xlink:title="domain-member: p_cor_entityParty to p_bus_partyAddress in link_bus_partyAddress" order="10"/>
    <!-- p_cor_entityParty to targetRole link_bus_partyWebSite -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyWebSite" xlink:label="p_bus_partyWebSite" xlink:title="p_bus_partyWebSite Party_ Web Site"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyWebSite" xlink:from="p_cor_entityParty" xlink:to="p_bus_partyWebSite" xlink:title="domain-member: p_cor_entityParty to p_bus_partyWebSite in link_bus_partyWebSite" order="11"/>
    <!-- p_cor_entityParty to targetRole link_bus_partyContact -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContact" xlink:label="p_bus_partyContact" xlink:title="p_bus_partyContact Party_ Contact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContact" xlink:from="p_cor_entityParty" xlink:to="p_bus_partyContact" xlink:title="domain-member: p_cor_entityParty to p_bus_partyContact in link_bus_partyContact" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_defaultAccountingMethodPurpose" xlink:label="cor_defaultAccountingMethodPurpose" xlink:title="cor_defaultAccountingMethodPurpose Default Accounting Method Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_defaultAccountingMethodPurpose" xlink:title="domain-member: p_cor_entityParty to cor_defaultAccountingMethodPurpose Default Accounting Method Purpose" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_defaultAccountingMethodPurposeDescription" xlink:label="cor_defaultAccountingMethodPurposeDescription" xlink:title="cor_defaultAccountingMethodPurposeDescription Default Accounting Method Purpose Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_defaultAccountingMethodPurposeDescription" xlink:title="domain-member: p_cor_entityParty to cor_defaultAccountingMethodPurposeDescription Default Accounting Method Purpose Description" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_fiscalYearStart" xlink:label="cor_fiscalYearStart" xlink:title="cor_fiscalYearStart Fiscal Year Start"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_fiscalYearStart" xlink:title="domain-member: p_cor_entityParty to cor_fiscalYearStart Fiscal Year Start" order="15"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_fiscalYearEnd" xlink:label="cor_fiscalYearEnd" xlink:title="cor_fiscalYearEnd Fiscal Year End"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entityParty" xlink:to="cor_fiscalYearEnd" xlink:title="domain-member: p_cor_entityParty to cor_fiscalYearEnd Fiscal Year End" order="16"/>
    <!-- p_cor_entityParty to targetRole link_bus_specifiedAccountingMethodStructure -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_specifiedAccountingMethodStructure" xlink:label="p_bus_specifiedAccountingMethodStructure" xlink:title="p_bus_specifiedAccountingMethodStructure Specified_ Accounting Method Structure"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_specifiedAccountingMethodStructure" xlink:from="p_cor_entityParty" xlink:to="p_bus_specifiedAccountingMethodStructure" xlink:title="domain-member: p_cor_entityParty to p_bus_specifiedAccountingMethodStructure in link_bus_specifiedAccountingMethodStructure" order="17"/>
    <!-- p_cor_entityParty to targetRole link_bus_assignedAccountant -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_assignedAccountant" xlink:label="p_bus_assignedAccountant" xlink:title="p_bus_assignedAccountant Assigned_ Accountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_assignedAccountant" xlink:from="p_cor_entityParty" xlink:to="p_bus_assignedAccountant" xlink:title="domain-member: p_cor_entityParty to p_bus_assignedAccountant in link_bus_assignedAccountant" order="18"/>
    <!-- p_cor_entityParty to targetRole link_bus_specifiedReportingCalendar -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_specifiedReportingCalendar" xlink:label="p_bus_specifiedReportingCalendar" xlink:title="p_bus_specifiedReportingCalendar Specified_ Reporting Calendar"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_specifiedReportingCalendar" xlink:from="p_cor_entityParty" xlink:to="p_bus_specifiedReportingCalendar" xlink:title="domain-member: p_cor_entityParty to p_bus_specifiedReportingCalendar in link_bus_specifiedReportingCalendar" order="19"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_entityPartyPhone">
    <!-- p_bus_entityPartyPhone all (has-hypercube) h_bus_entityPartyPhone link_bus_entityPartyPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_entityPartyPhone" xlink:label="p_bus_entityPartyPhone" xlink:title="p_bus_entityPartyPhone"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_entityPartyPhone" xlink:label="h_bus_entityPartyPhone" xlink:title="h_bus_entityPartyPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_entityPartyPhone" xlink:to="h_bus_entityPartyPhone" xlink:title="all (has-hypercube): p_bus_entityPartyPhone to h_bus_entityPartyPhone" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_entityPartyPhone" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_entityPartyPhone to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_entityPartyPhone" xlink:label="d_bus_entityPartyPhone" xlink:title="d_bus_entityPartyPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_entityPartyPhone" xlink:to="d_bus_entityPartyPhone" xlink:title="hypercube-dimension: h_bus_entityPartyPhone to d_bus_entityPartyPhone" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_entityPartyPhoneNumber" xlink:label="bus_entityPartyPhoneNumber" xlink:title="bus_entityPartyPhoneNumber Phone Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_entityPartyPhone" xlink:to="bus_entityPartyPhoneNumber" xlink:title="domain-member: p_bus_entityPartyPhone to bus_entityPartyPhoneNumber Phone Number" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_entityPartyPhoneNumberDescription" xlink:label="bus_entityPartyPhoneNumberDescription" xlink:title="bus_entityPartyPhoneNumberDescription Phone Number Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_entityPartyPhone" xlink:to="bus_entityPartyPhoneNumberDescription" xlink:title="domain-member: p_bus_entityPartyPhone to bus_entityPartyPhoneNumberDescription Phone Number Description" order="4"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_entityPartyFax">
    <!-- p_bus_entityPartyFax all (has-hypercube) h_bus_entityPartyFax link_bus_entityPartyFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_entityPartyFax" xlink:label="p_bus_entityPartyFax" xlink:title="p_bus_entityPartyFax"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_entityPartyFax" xlink:label="h_bus_entityPartyFax" xlink:title="h_bus_entityPartyFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_entityPartyFax" xlink:to="h_bus_entityPartyFax" xlink:title="all (has-hypercube): p_bus_entityPartyFax to h_bus_entityPartyFax" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_entityPartyFax" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_entityPartyFax to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_entityPartyFax" xlink:label="d_bus_entityPartyFax" xlink:title="d_bus_entityPartyFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_entityPartyFax" xlink:to="d_bus_entityPartyFax" xlink:title="hypercube-dimension: h_bus_entityPartyFax to d_bus_entityPartyFax" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_entityPartyFaxNumber" xlink:label="bus_entityPartyFaxNumber" xlink:title="bus_entityPartyFaxNumber Fax Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_entityPartyFax" xlink:to="bus_entityPartyFaxNumber" xlink:title="domain-member: p_bus_entityPartyFax to bus_entityPartyFaxNumber Fax Number" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_entityPartyFaxNumberUsage" xlink:label="bus_entityPartyFaxNumberUsage" xlink:title="bus_entityPartyFaxNumberUsage Fax Number Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_entityPartyFax" xlink:to="bus_entityPartyFaxNumberUsage" xlink:title="domain-member: p_bus_entityPartyFax to bus_entityPartyFaxNumberUsage Fax Number Usage" order="4"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_entityPartyEmail">
    <!-- p_bus_entityPartyEmail all (has-hypercube) h_bus_entityPartyEmail link_bus_entityPartyEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_entityPartyEmail" xlink:label="p_bus_entityPartyEmail" xlink:title="p_bus_entityPartyEmail"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_entityPartyEmail" xlink:label="h_bus_entityPartyEmail" xlink:title="h_bus_entityPartyEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_entityPartyEmail" xlink:to="h_bus_entityPartyEmail" xlink:title="all (has-hypercube): p_bus_entityPartyEmail to h_bus_entityPartyEmail" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_entityPartyEmail" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_entityPartyEmail to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_entityPartyEmail" xlink:label="d_bus_entityPartyEmail" xlink:title="d_bus_entityPartyEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_entityPartyEmail" xlink:to="d_bus_entityPartyEmail" xlink:title="hypercube-dimension: h_bus_entityPartyEmail to d_bus_entityPartyEmail" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_entityPartyEmailAddress" xlink:label="bus_entityPartyEmailAddress" xlink:title="bus_entityPartyEmailAddress Email Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_entityPartyEmail" xlink:to="bus_entityPartyEmailAddress" xlink:title="domain-member: p_bus_entityPartyEmail to bus_entityPartyEmailAddress Email Address" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_entityPartyEmailAddressUsage" xlink:label="bus_entityPartyEmailAddressUsage" xlink:title="bus_entityPartyEmailAddressUsage Email Address Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_entityPartyEmail" xlink:to="bus_entityPartyEmailAddressUsage" xlink:title="domain-member: p_bus_entityPartyEmail to bus_entityPartyEmailAddressUsage Email Address Usage" order="4"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_organizationIdentifier">
    <!-- p_bus_organizationIdentifier all (has-hypercube) h_bus_organizationIdentifier link_bus_organizationIdentifier -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_organizationIdentifier" xlink:label="p_bus_organizationIdentifier" xlink:title="p_bus_organizationIdentifier"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_organizationIdentifier" xlink:label="h_bus_organizationIdentifier" xlink:title="h_bus_organizationIdentifier"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_organizationIdentifier" xlink:to="h_bus_organizationIdentifier" xlink:title="all (has-hypercube): p_bus_organizationIdentifier to h_bus_organizationIdentifier" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_organizationIdentifier" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_organizationIdentifier to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_organizationIdentifier" xlink:label="d_bus_organizationIdentifier" xlink:title="d_bus_organizationIdentifier"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_organizationIdentifier" xlink:to="d_bus_organizationIdentifier" xlink:title="hypercube-dimension: h_bus_organizationIdentifier to d_bus_organizationIdentifier" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_organizationIdentifierCode" xlink:label="bus_organizationIdentifierCode" xlink:title="bus_organizationIdentifierCode Organization Identifier Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_organizationIdentifier" xlink:to="bus_organizationIdentifierCode" xlink:title="domain-member: p_bus_organizationIdentifier to bus_organizationIdentifierCode Organization Identifier Code" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_organizationIdentifierPurpose" xlink:label="bus_organizationIdentifierPurpose" xlink:title="bus_organizationIdentifierPurpose Organization Identifier Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_organizationIdentifier" xlink:to="bus_organizationIdentifierPurpose" xlink:title="domain-member: p_bus_organizationIdentifier to bus_organizationIdentifierPurpose Organization Identifier Purpose" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_organizationIdentifierIssuingAgency" xlink:label="bus_organizationIdentifierIssuingAgency" xlink:title="bus_organizationIdentifierIssuingAgency Organization Identifier Issuing Agency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_organizationIdentifier" xlink:to="bus_organizationIdentifierIssuingAgency" xlink:title="domain-member: p_bus_organizationIdentifier to bus_organizationIdentifierIssuingAgency Organization Identifier Issuing Agency" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_organizationIdentifierDescription" xlink:label="bus_organizationIdentifierDescription" xlink:title="bus_organizationIdentifierDescription Organization Identifier Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_organizationIdentifier" xlink:to="bus_organizationIdentifierDescription" xlink:title="domain-member: p_bus_organizationIdentifier to bus_organizationIdentifierDescription Organization Identifier Description" order="6"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyAddress">
    <!-- p_bus_partyAddress all (has-hypercube) h_bus_partyAddress link_bus_partyAddress -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyAddress" xlink:label="p_bus_partyAddress" xlink:title="p_bus_partyAddress"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_partyAddress" xlink:label="h_bus_partyAddress" xlink:title="h_bus_partyAddress"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_partyAddress" xlink:to="h_bus_partyAddress" xlink:title="all (has-hypercube): p_bus_partyAddress to h_bus_partyAddress" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyAddress" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_partyAddress to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyAddress" xlink:label="d_bus_partyAddress" xlink:title="d_bus_partyAddress"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyAddress" xlink:to="d_bus_partyAddress" xlink:title="hypercube-dimension: h_bus_partyAddress to d_bus_partyAddress" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressName" xlink:label="bus_partyAddressName" xlink:title="bus_partyAddressName Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressName" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressName Name" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressDescription" xlink:label="bus_partyAddressDescription" xlink:title="bus_partyAddressDescription Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressDescription" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressDescription Description" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressPurpose" xlink:label="bus_partyAddressPurpose" xlink:title="bus_partyAddressPurpose Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressPurpose" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressPurpose Purpose" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressLocationId" xlink:label="bus_partyAddressLocationId" xlink:title="bus_partyAddressLocationId Location ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressLocationId" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressLocationId Location ID" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressBuildingNumber" xlink:label="bus_partyAddressBuildingNumber" xlink:title="bus_partyAddressBuildingNumber Building Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressBuildingNumber" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressBuildingNumber Building Number" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressStreet" xlink:label="bus_partyAddressStreet" xlink:title="bus_partyAddressStreet Street"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressStreet" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressStreet Street" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressDetail" xlink:label="bus_partyAddressDetail" xlink:title="bus_partyAddressDetail Address Detail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressDetail" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressDetail Address Detail" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressCity" xlink:label="bus_partyAddressCity" xlink:title="bus_partyAddressCity City"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressCity" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressCity City" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressStateOrProvince" xlink:label="bus_partyAddressStateOrProvince" xlink:title="bus_partyAddressStateOrProvince State or Province"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressStateOrProvince" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressStateOrProvince State or Province" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressCountry" xlink:label="bus_partyAddressCountry" xlink:title="bus_partyAddressCountry Country"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressCountry" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressCountry Country" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressZipOrPostalCode" xlink:label="bus_partyAddressZipOrPostalCode" xlink:title="bus_partyAddressZipOrPostalCode Zip or Postal Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressZipOrPostalCode" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressZipOrPostalCode Zip or Postal Code" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyAddressActiveIndicator" xlink:label="bus_partyAddressActiveIndicator" xlink:title="bus_partyAddressActiveIndicator Active Indicator"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyAddress" xlink:to="bus_partyAddressActiveIndicator" xlink:title="domain-member: p_bus_partyAddress to bus_partyAddressActiveIndicator Active Indicator" order="14"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyWebSite">
    <!-- p_bus_partyWebSite all (has-hypercube) h_bus_partyWebSite link_bus_partyWebSite -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyWebSite" xlink:label="p_bus_partyWebSite" xlink:title="p_bus_partyWebSite"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_partyWebSite" xlink:label="h_bus_partyWebSite" xlink:title="h_bus_partyWebSite"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_partyWebSite" xlink:to="h_bus_partyWebSite" xlink:title="all (has-hypercube): p_bus_partyWebSite to h_bus_partyWebSite" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyWebSite" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_partyWebSite to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyWebSite" xlink:label="d_bus_partyWebSite" xlink:title="d_bus_partyWebSite"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyWebSite" xlink:to="d_bus_partyWebSite" xlink:title="hypercube-dimension: h_bus_partyWebSite to d_bus_partyWebSite" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_webSiteUrl" xlink:label="bus_webSiteUrl" xlink:title="bus_webSiteUrl Web Site URL"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyWebSite" xlink:to="bus_webSiteUrl" xlink:title="domain-member: p_bus_partyWebSite to bus_webSiteUrl Web Site URL" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_webSiteDescription" xlink:label="bus_webSiteDescription" xlink:title="bus_webSiteDescription Web Site Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyWebSite" xlink:to="bus_webSiteDescription" xlink:title="domain-member: p_bus_partyWebSite to bus_webSiteDescription Web Site Description" order="4"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContact">
    <!-- p_bus_partyContact all (has-hypercube) h_bus_partyContact link_bus_partyContact -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContact" xlink:label="p_bus_partyContact" xlink:title="p_bus_partyContact"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_partyContact" xlink:label="h_bus_partyContact" xlink:title="h_bus_partyContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_partyContact" xlink:to="h_bus_partyContact" xlink:title="all (has-hypercube): p_bus_partyContact to h_bus_partyContact" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContact" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_partyContact to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyContact" xlink:label="d_bus_partyContact" xlink:title="d_bus_partyContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContact" xlink:to="d_bus_partyContact" xlink:title="hypercube-dimension: h_bus_partyContact to d_bus_partyContact" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactPrefix" xlink:label="bus_partyContactPrefix" xlink:title="bus_partyContactPrefix Contact Prefix"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactPrefix" xlink:title="domain-member: p_bus_partyContact to bus_partyContactPrefix Contact Prefix" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactLastName" xlink:label="bus_partyContactLastName" xlink:title="bus_partyContactLastName Contact Last Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactLastName" xlink:title="domain-member: p_bus_partyContact to bus_partyContactLastName Contact Last Name" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactFirstName" xlink:label="bus_partyContactFirstName" xlink:title="bus_partyContactFirstName Contact First Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactFirstName" xlink:title="domain-member: p_bus_partyContact to bus_partyContactFirstName Contact First Name" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactSuffix" xlink:label="bus_partyContactSuffix" xlink:title="bus_partyContactSuffix Contact Suffix"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactSuffix" xlink:title="domain-member: p_bus_partyContact to bus_partyContactSuffix Contact Suffix" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactAttentionLine" xlink:label="bus_partyContactAttentionLine" xlink:title="bus_partyContactAttentionLine Contact Attention Line"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactAttentionLine" xlink:title="domain-member: p_bus_partyContact to bus_partyContactAttentionLine Contact Attention Line" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactPositionRole" xlink:label="bus_partyContactPositionRole" xlink:title="bus_partyContactPositionRole Contact Position Role"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactPositionRole" xlink:title="domain-member: p_bus_partyContact to bus_partyContactPositionRole Contact Position Role" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactContactType" xlink:label="bus_partyContactContactType" xlink:title="bus_partyContactContactType Contact Contact Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactContactType" xlink:title="domain-member: p_bus_partyContact to bus_partyContactContactType Contact Contact Type" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactLocationIdCrossReference" xlink:label="bus_partyContactLocationIdCrossReference" xlink:title="bus_partyContactLocationIdCrossReference Contact Location ID cross reference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactLocationIdCrossReference" xlink:title="domain-member: p_bus_partyContact to bus_partyContactLocationIdCrossReference Contact Location ID cross reference" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactActive" xlink:label="bus_partyContactActive" xlink:title="bus_partyContactActive Contact Active"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContact" xlink:to="bus_partyContactActive" xlink:title="domain-member: p_bus_partyContact to bus_partyContactActive Contact Active" order="11"/>
    <!-- p_bus_partyContact to targetRole link_bus_partyContactPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContactPhone" xlink:label="p_bus_partyContactPhone" xlink:title="p_bus_partyContactPhone Contact_ Phone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContactPhone" xlink:from="p_bus_partyContact" xlink:to="p_bus_partyContactPhone" xlink:title="domain-member: p_bus_partyContact to p_bus_partyContactPhone in link_bus_partyContactPhone" order="12"/>
    <!-- p_bus_partyContact to targetRole link_bus_partyContactFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContactFax" xlink:label="p_bus_partyContactFax" xlink:title="p_bus_partyContactFax Contact_ Fax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContactFax" xlink:from="p_bus_partyContact" xlink:to="p_bus_partyContactFax" xlink:title="domain-member: p_bus_partyContact to p_bus_partyContactFax in link_bus_partyContactFax" order="13"/>
    <!-- p_bus_partyContact to targetRole link_bus_partyContactEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContactEmail" xlink:label="p_bus_partyContactEmail" xlink:title="p_bus_partyContactEmail Contact_ Email"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContactEmail" xlink:from="p_bus_partyContact" xlink:to="p_bus_partyContactEmail" xlink:title="domain-member: p_bus_partyContact to p_bus_partyContactEmail in link_bus_partyContactEmail" order="14"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContactPhone">
    <!-- p_bus_partyContactPhone all (has-hypercube) h_bus_partyContactPhone link_bus_partyContactPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContactPhone" xlink:label="p_bus_partyContactPhone" xlink:title="p_bus_partyContactPhone"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_partyContactPhone" xlink:label="h_bus_partyContactPhone" xlink:title="h_bus_partyContactPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_partyContactPhone" xlink:to="h_bus_partyContactPhone" xlink:title="all (has-hypercube): p_bus_partyContactPhone to h_bus_partyContactPhone" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactPhone" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_partyContactPhone to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyContact" xlink:label="d_bus_partyContact" xlink:title="d_bus_partyContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactPhone" xlink:to="d_bus_partyContact" xlink:title="hypercube-dimension: h_bus_partyContactPhone to d_bus_partyContact" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyContactPhone" xlink:label="d_bus_partyContactPhone" xlink:title="d_bus_partyContactPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactPhone" xlink:to="d_bus_partyContactPhone" xlink:title="hypercube-dimension: h_bus_partyContactPhone to d_bus_partyContactPhone" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactPhoneNumber" xlink:label="bus_partyContactPhoneNumber" xlink:title="bus_partyContactPhoneNumber Phone Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContactPhone" xlink:to="bus_partyContactPhoneNumber" xlink:title="domain-member: p_bus_partyContactPhone to bus_partyContactPhoneNumber Phone Number" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactPhoneNumberDescription" xlink:label="bus_partyContactPhoneNumberDescription" xlink:title="bus_partyContactPhoneNumberDescription Phone Number Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContactPhone" xlink:to="bus_partyContactPhoneNumberDescription" xlink:title="domain-member: p_bus_partyContactPhone to bus_partyContactPhoneNumberDescription Phone Number Description" order="5"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContactFax">
    <!-- p_bus_partyContactFax all (has-hypercube) h_bus_partyContactFax link_bus_partyContactFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContactFax" xlink:label="p_bus_partyContactFax" xlink:title="p_bus_partyContactFax"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_partyContactFax" xlink:label="h_bus_partyContactFax" xlink:title="h_bus_partyContactFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_partyContactFax" xlink:to="h_bus_partyContactFax" xlink:title="all (has-hypercube): p_bus_partyContactFax to h_bus_partyContactFax" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactFax" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_partyContactFax to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyContact" xlink:label="d_bus_partyContact" xlink:title="d_bus_partyContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactFax" xlink:to="d_bus_partyContact" xlink:title="hypercube-dimension: h_bus_partyContactFax to d_bus_partyContact" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyContactFax" xlink:label="d_bus_partyContactFax" xlink:title="d_bus_partyContactFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactFax" xlink:to="d_bus_partyContactFax" xlink:title="hypercube-dimension: h_bus_partyContactFax to d_bus_partyContactFax" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactFaxNumber" xlink:label="bus_partyContactFaxNumber" xlink:title="bus_partyContactFaxNumber Fax Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContactFax" xlink:to="bus_partyContactFaxNumber" xlink:title="domain-member: p_bus_partyContactFax to bus_partyContactFaxNumber Fax Number" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactFaxNumberUsage" xlink:label="bus_partyContactFaxNumberUsage" xlink:title="bus_partyContactFaxNumberUsage Fax Number Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContactFax" xlink:to="bus_partyContactFaxNumberUsage" xlink:title="domain-member: p_bus_partyContactFax to bus_partyContactFaxNumberUsage Fax Number Usage" order="5"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_partyContactEmail">
    <!-- p_bus_partyContactEmail all (has-hypercube) h_bus_partyContactEmail link_bus_partyContactEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_partyContactEmail" xlink:label="p_bus_partyContactEmail" xlink:title="p_bus_partyContactEmail"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_partyContactEmail" xlink:label="h_bus_partyContactEmail" xlink:title="h_bus_partyContactEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_partyContactEmail" xlink:to="h_bus_partyContactEmail" xlink:title="all (has-hypercube): p_bus_partyContactEmail to h_bus_partyContactEmail" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactEmail" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_partyContactEmail to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyContact" xlink:label="d_bus_partyContact" xlink:title="d_bus_partyContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactEmail" xlink:to="d_bus_partyContact" xlink:title="hypercube-dimension: h_bus_partyContactEmail to d_bus_partyContact" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_partyContactEmail" xlink:label="d_bus_partyContactEmail" xlink:title="d_bus_partyContactEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_partyContactEmail" xlink:to="d_bus_partyContactEmail" xlink:title="hypercube-dimension: h_bus_partyContactEmail to d_bus_partyContactEmail" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactEmailAddress" xlink:label="bus_partyContactEmailAddress" xlink:title="bus_partyContactEmailAddress Email Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContactEmail" xlink:to="bus_partyContactEmailAddress" xlink:title="domain-member: p_bus_partyContactEmail to bus_partyContactEmailAddress Email Address" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_partyContactEmailAddressUsage" xlink:label="bus_partyContactEmailAddressUsage" xlink:title="bus_partyContactEmailAddressUsage Email Address Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_partyContactEmail" xlink:to="bus_partyContactEmailAddressUsage" xlink:title="domain-member: p_bus_partyContactEmail to bus_partyContactEmailAddressUsage Email Address Usage" order="5"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_specifiedAccountingMethodStructure">
    <!-- p_bus_specifiedAccountingMethodStructure all (has-hypercube) h_bus_specifiedAccountingMethodStructure link_bus_specifiedAccountingMethodStructure -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_specifiedAccountingMethodStructure" xlink:label="p_bus_specifiedAccountingMethodStructure" xlink:title="p_bus_specifiedAccountingMethodStructure"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_specifiedAccountingMethodStructure" xlink:label="h_bus_specifiedAccountingMethodStructure" xlink:title="h_bus_specifiedAccountingMethodStructure"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_specifiedAccountingMethodStructure" xlink:to="h_bus_specifiedAccountingMethodStructure" xlink:title="all (has-hypercube): p_bus_specifiedAccountingMethodStructure to h_bus_specifiedAccountingMethodStructure" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_specifiedAccountingMethodStructure" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_specifiedAccountingMethodStructure to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_specifiedAccountingMethodStructure" xlink:label="d_bus_specifiedAccountingMethodStructure" xlink:title="d_bus_specifiedAccountingMethodStructure"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_specifiedAccountingMethodStructure" xlink:to="d_bus_specifiedAccountingMethodStructure" xlink:title="hypercube-dimension: h_bus_specifiedAccountingMethodStructure to d_bus_specifiedAccountingMethodStructure" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_specifiedAccountingMethod" xlink:label="bus_specifiedAccountingMethod" xlink:title="bus_specifiedAccountingMethod Accounting Method"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedAccountingMethodStructure" xlink:to="bus_specifiedAccountingMethod" xlink:title="domain-member: p_bus_specifiedAccountingMethodStructure to bus_specifiedAccountingMethod Accounting Method" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_specifiedAccountingMethodDescription" xlink:label="bus_specifiedAccountingMethodDescription" xlink:title="bus_specifiedAccountingMethodDescription Accounting Method Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedAccountingMethodStructure" xlink:to="bus_specifiedAccountingMethodDescription" xlink:title="domain-member: p_bus_specifiedAccountingMethodStructure to bus_specifiedAccountingMethodDescription Accounting Method Description" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_specifiedAccountingMethodPurpose" xlink:label="bus_specifiedAccountingMethodPurpose" xlink:title="bus_specifiedAccountingMethodPurpose Accounting Method Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedAccountingMethodStructure" xlink:to="bus_specifiedAccountingMethodPurpose" xlink:title="domain-member: p_bus_specifiedAccountingMethodStructure to bus_specifiedAccountingMethodPurpose Accounting Method Purpose" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_specifiedAccountingMethodPurposeDescription" xlink:label="bus_specifiedAccountingMethodPurposeDescription" xlink:title="bus_specifiedAccountingMethodPurposeDescription Accounting Method Purpose Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedAccountingMethodStructure" xlink:to="bus_specifiedAccountingMethodPurposeDescription" xlink:title="domain-member: p_bus_specifiedAccountingMethodStructure to bus_specifiedAccountingMethodPurposeDescription Accounting Method Purpose Description" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_specifiedAccountingMethodStartDate" xlink:label="bus_specifiedAccountingMethodStartDate" xlink:title="bus_specifiedAccountingMethodStartDate Accounting Method Start Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedAccountingMethodStructure" xlink:to="bus_specifiedAccountingMethodStartDate" xlink:title="domain-member: p_bus_specifiedAccountingMethodStructure to bus_specifiedAccountingMethodStartDate Accounting Method Start Date" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_specifiedAccountingMethodEndDate" xlink:label="bus_specifiedAccountingMethodEndDate" xlink:title="bus_specifiedAccountingMethodEndDate Accounting Method End Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedAccountingMethodStructure" xlink:to="bus_specifiedAccountingMethodEndDate" xlink:title="domain-member: p_bus_specifiedAccountingMethodStructure to bus_specifiedAccountingMethodEndDate Accounting Method End Date" order="8"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_assignedAccountant">
    <!-- p_bus_assignedAccountant all (has-hypercube) h_bus_assignedAccountant link_bus_assignedAccountant -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_assignedAccountant" xlink:label="p_bus_assignedAccountant" xlink:title="p_bus_assignedAccountant"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_assignedAccountant" xlink:label="h_bus_assignedAccountant" xlink:title="h_bus_assignedAccountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_assignedAccountant" xlink:to="h_bus_assignedAccountant" xlink:title="all (has-hypercube): p_bus_assignedAccountant to h_bus_assignedAccountant" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_assignedAccountant" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_assignedAccountant to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_assignedAccountant" xlink:label="d_bus_assignedAccountant" xlink:title="d_bus_assignedAccountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_assignedAccountant" xlink:to="d_bus_assignedAccountant" xlink:title="hypercube-dimension: h_bus_assignedAccountant to d_bus_assignedAccountant" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantName" xlink:label="bus_accountantName" xlink:title="bus_accountantName Accountant Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_assignedAccountant" xlink:to="bus_accountantName" xlink:title="domain-member: p_bus_assignedAccountant to bus_accountantName Accountant Name" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantTypeOfEngagement" xlink:label="bus_accountantTypeOfEngagement" xlink:title="bus_accountantTypeOfEngagement Accountant Type of Engagement"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_assignedAccountant" xlink:to="bus_accountantTypeOfEngagement" xlink:title="domain-member: p_bus_assignedAccountant to bus_accountantTypeOfEngagement Accountant Type of Engagement" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantTypeOfEngagementDescription" xlink:label="bus_accountantTypeOfEngagementDescription" xlink:title="bus_accountantTypeOfEngagementDescription Accountant Type of Engagement Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_assignedAccountant" xlink:to="bus_accountantTypeOfEngagementDescription" xlink:title="domain-member: p_bus_assignedAccountant to bus_accountantTypeOfEngagementDescription Accountant Type of Engagement Description" order="5"/>
    <!-- p_bus_assignedAccountant to targetRole link_bus_accountantAddress -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantAddress" xlink:label="p_bus_accountantAddress" xlink:title="p_bus_accountantAddress Accountant_ Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantAddress" xlink:from="p_bus_assignedAccountant" xlink:to="p_bus_accountantAddress" xlink:title="domain-member: p_bus_assignedAccountant to p_bus_accountantAddress in link_bus_accountantAddress" order="6"/>
    <!-- p_bus_assignedAccountant to targetRole link_bus_accountantContact -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContact" xlink:label="p_bus_accountantContact" xlink:title="p_bus_accountantContact Accountant_ Contact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContact" xlink:from="p_bus_assignedAccountant" xlink:to="p_bus_accountantContact" xlink:title="domain-member: p_bus_assignedAccountant to p_bus_accountantContact in link_bus_accountantContact" order="7"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantAddress">
    <!-- p_bus_accountantAddress all (has-hypercube) h_bus_accountantAddress link_bus_accountantAddress -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantAddress" xlink:label="p_bus_accountantAddress" xlink:title="p_bus_accountantAddress"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_accountantAddress" xlink:label="h_bus_accountantAddress" xlink:title="h_bus_accountantAddress"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_accountantAddress" xlink:to="h_bus_accountantAddress" xlink:title="all (has-hypercube): p_bus_accountantAddress to h_bus_accountantAddress" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantAddress" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_accountantAddress to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_assignedAccountant" xlink:label="d_bus_assignedAccountant" xlink:title="d_bus_assignedAccountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantAddress" xlink:to="d_bus_assignedAccountant" xlink:title="hypercube-dimension: h_bus_accountantAddress to d_bus_assignedAccountant" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantAddress" xlink:label="d_bus_accountantAddress" xlink:title="d_bus_accountantAddress"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantAddress" xlink:to="d_bus_accountantAddress" xlink:title="hypercube-dimension: h_bus_accountantAddress to d_bus_accountantAddress" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressName" xlink:label="bus_accountantAddressName" xlink:title="bus_accountantAddressName Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressName" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressName Name" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressDescription" xlink:label="bus_accountantAddressDescription" xlink:title="bus_accountantAddressDescription Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressDescription" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressDescription Description" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressPurpose" xlink:label="bus_accountantAddressPurpose" xlink:title="bus_accountantAddressPurpose Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressPurpose" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressPurpose Purpose" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressLocationId" xlink:label="bus_accountantAddressLocationId" xlink:title="bus_accountantAddressLocationId Location ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressLocationId" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressLocationId Location ID" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressBuildingNumber" xlink:label="bus_accountantAddressBuildingNumber" xlink:title="bus_accountantAddressBuildingNumber Building Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressBuildingNumber" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressBuildingNumber Building Number" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressStreet" xlink:label="bus_accountantAddressStreet" xlink:title="bus_accountantAddressStreet Street"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressStreet" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressStreet Street" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressDetail" xlink:label="bus_accountantAddressDetail" xlink:title="bus_accountantAddressDetail Address Detail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressDetail" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressDetail Address Detail" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressCity" xlink:label="bus_accountantAddressCity" xlink:title="bus_accountantAddressCity City"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressCity" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressCity City" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressStateOrProvince" xlink:label="bus_accountantAddressStateOrProvince" xlink:title="bus_accountantAddressStateOrProvince State or Province"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressStateOrProvince" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressStateOrProvince State or Province" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressCountry" xlink:label="bus_accountantAddressCountry" xlink:title="bus_accountantAddressCountry Country"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressCountry" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressCountry Country" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressZipOrPostalCode" xlink:label="bus_accountantAddressZipOrPostalCode" xlink:title="bus_accountantAddressZipOrPostalCode Zip or Postal Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressZipOrPostalCode" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressZipOrPostalCode Zip or Postal Code" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantAddressActiveIndicator" xlink:label="bus_accountantAddressActiveIndicator" xlink:title="bus_accountantAddressActiveIndicator Active Indicator"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantAddress" xlink:to="bus_accountantAddressActiveIndicator" xlink:title="domain-member: p_bus_accountantAddress to bus_accountantAddressActiveIndicator Active Indicator" order="15"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContact">
    <!-- p_bus_accountantContact all (has-hypercube) h_bus_accountantContact link_bus_accountantContact -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContact" xlink:label="p_bus_accountantContact" xlink:title="p_bus_accountantContact"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_accountantContact" xlink:label="h_bus_accountantContact" xlink:title="h_bus_accountantContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_accountantContact" xlink:to="h_bus_accountantContact" xlink:title="all (has-hypercube): p_bus_accountantContact to h_bus_accountantContact" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContact" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_accountantContact to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_assignedAccountant" xlink:label="d_bus_assignedAccountant" xlink:title="d_bus_assignedAccountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContact" xlink:to="d_bus_assignedAccountant" xlink:title="hypercube-dimension: h_bus_accountantContact to d_bus_assignedAccountant" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantContact" xlink:label="d_bus_accountantContact" xlink:title="d_bus_accountantContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContact" xlink:to="d_bus_accountantContact" xlink:title="hypercube-dimension: h_bus_accountantContact to d_bus_accountantContact" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactPrefix" xlink:label="bus_accountantContactPrefix" xlink:title="bus_accountantContactPrefix Contact Prefix"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactPrefix" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactPrefix Contact Prefix" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactLastName" xlink:label="bus_accountantContactLastName" xlink:title="bus_accountantContactLastName Contact Last Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactLastName" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactLastName Contact Last Name" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactFirstName" xlink:label="bus_accountantContactFirstName" xlink:title="bus_accountantContactFirstName Contact First Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactFirstName" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactFirstName Contact First Name" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactSuffix" xlink:label="bus_accountantContactSuffix" xlink:title="bus_accountantContactSuffix Contact Suffix"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactSuffix" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactSuffix Contact Suffix" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactAttentionLine" xlink:label="bus_accountantContactAttentionLine" xlink:title="bus_accountantContactAttentionLine Contact Attention Line"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactAttentionLine" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactAttentionLine Contact Attention Line" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactPositionRole" xlink:label="bus_accountantContactPositionRole" xlink:title="bus_accountantContactPositionRole Contact Position Role"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactPositionRole" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactPositionRole Contact Position Role" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactContactType" xlink:label="bus_accountantContactContactType" xlink:title="bus_accountantContactContactType Contact Contact Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactContactType" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactContactType Contact Contact Type" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactLocationIdCrossReference" xlink:label="bus_accountantContactLocationIdCrossReference" xlink:title="bus_accountantContactLocationIdCrossReference Contact Location ID cross reference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactLocationIdCrossReference" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactLocationIdCrossReference Contact Location ID cross reference" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactActive" xlink:label="bus_accountantContactActive" xlink:title="bus_accountantContactActive Contact Active"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContact" xlink:to="bus_accountantContactActive" xlink:title="domain-member: p_bus_accountantContact to bus_accountantContactActive Contact Active" order="12"/>
    <!-- p_bus_accountantContact to targetRole link_bus_accountantContactPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContactPhone" xlink:label="p_bus_accountantContactPhone" xlink:title="p_bus_accountantContactPhone Contact_ Phone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContactPhone" xlink:from="p_bus_accountantContact" xlink:to="p_bus_accountantContactPhone" xlink:title="domain-member: p_bus_accountantContact to p_bus_accountantContactPhone in link_bus_accountantContactPhone" order="13"/>
    <!-- p_bus_accountantContact to targetRole link_bus_accountantContactFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContactFax" xlink:label="p_bus_accountantContactFax" xlink:title="p_bus_accountantContactFax Contact_ Fax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContactFax" xlink:from="p_bus_accountantContact" xlink:to="p_bus_accountantContactFax" xlink:title="domain-member: p_bus_accountantContact to p_bus_accountantContactFax in link_bus_accountantContactFax" order="14"/>
    <!-- p_bus_accountantContact to targetRole link_bus_accountantContactEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContactEmail" xlink:label="p_bus_accountantContactEmail" xlink:title="p_bus_accountantContactEmail Contact_ Email"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContactEmail" xlink:from="p_bus_accountantContact" xlink:to="p_bus_accountantContactEmail" xlink:title="domain-member: p_bus_accountantContact to p_bus_accountantContactEmail in link_bus_accountantContactEmail" order="15"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContactPhone">
    <!-- p_bus_accountantContactPhone all (has-hypercube) h_bus_accountantContactPhone link_bus_accountantContactPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContactPhone" xlink:label="p_bus_accountantContactPhone" xlink:title="p_bus_accountantContactPhone"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_accountantContactPhone" xlink:label="h_bus_accountantContactPhone" xlink:title="h_bus_accountantContactPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_accountantContactPhone" xlink:to="h_bus_accountantContactPhone" xlink:title="all (has-hypercube): p_bus_accountantContactPhone to h_bus_accountantContactPhone" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactPhone" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_accountantContactPhone to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_assignedAccountant" xlink:label="d_bus_assignedAccountant" xlink:title="d_bus_assignedAccountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactPhone" xlink:to="d_bus_assignedAccountant" xlink:title="hypercube-dimension: h_bus_accountantContactPhone to d_bus_assignedAccountant" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantContact" xlink:label="d_bus_accountantContact" xlink:title="d_bus_accountantContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactPhone" xlink:to="d_bus_accountantContact" xlink:title="hypercube-dimension: h_bus_accountantContactPhone to d_bus_accountantContact" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantContactPhone" xlink:label="d_bus_accountantContactPhone" xlink:title="d_bus_accountantContactPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactPhone" xlink:to="d_bus_accountantContactPhone" xlink:title="hypercube-dimension: h_bus_accountantContactPhone to d_bus_accountantContactPhone" order="4"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactPhoneNumber" xlink:label="bus_accountantContactPhoneNumber" xlink:title="bus_accountantContactPhoneNumber Phone Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContactPhone" xlink:to="bus_accountantContactPhoneNumber" xlink:title="domain-member: p_bus_accountantContactPhone to bus_accountantContactPhoneNumber Phone Number" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactPhoneNumberDescription" xlink:label="bus_accountantContactPhoneNumberDescription" xlink:title="bus_accountantContactPhoneNumberDescription Phone Number Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContactPhone" xlink:to="bus_accountantContactPhoneNumberDescription" xlink:title="domain-member: p_bus_accountantContactPhone to bus_accountantContactPhoneNumberDescription Phone Number Description" order="6"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContactFax">
    <!-- p_bus_accountantContactFax all (has-hypercube) h_bus_accountantContactFax link_bus_accountantContactFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContactFax" xlink:label="p_bus_accountantContactFax" xlink:title="p_bus_accountantContactFax"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_accountantContactFax" xlink:label="h_bus_accountantContactFax" xlink:title="h_bus_accountantContactFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_accountantContactFax" xlink:to="h_bus_accountantContactFax" xlink:title="all (has-hypercube): p_bus_accountantContactFax to h_bus_accountantContactFax" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactFax" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_accountantContactFax to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_assignedAccountant" xlink:label="d_bus_assignedAccountant" xlink:title="d_bus_assignedAccountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactFax" xlink:to="d_bus_assignedAccountant" xlink:title="hypercube-dimension: h_bus_accountantContactFax to d_bus_assignedAccountant" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantContact" xlink:label="d_bus_accountantContact" xlink:title="d_bus_accountantContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactFax" xlink:to="d_bus_accountantContact" xlink:title="hypercube-dimension: h_bus_accountantContactFax to d_bus_accountantContact" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantContactFax" xlink:label="d_bus_accountantContactFax" xlink:title="d_bus_accountantContactFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactFax" xlink:to="d_bus_accountantContactFax" xlink:title="hypercube-dimension: h_bus_accountantContactFax to d_bus_accountantContactFax" order="4"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactFaxNumber" xlink:label="bus_accountantContactFaxNumber" xlink:title="bus_accountantContactFaxNumber Fax Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContactFax" xlink:to="bus_accountantContactFaxNumber" xlink:title="domain-member: p_bus_accountantContactFax to bus_accountantContactFaxNumber Fax Number" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactFaxNumberUsage" xlink:label="bus_accountantContactFaxNumberUsage" xlink:title="bus_accountantContactFaxNumberUsage Fax Number Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContactFax" xlink:to="bus_accountantContactFaxNumberUsage" xlink:title="domain-member: p_bus_accountantContactFax to bus_accountantContactFaxNumberUsage Fax Number Usage" order="6"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_accountantContactEmail">
    <!-- p_bus_accountantContactEmail all (has-hypercube) h_bus_accountantContactEmail link_bus_accountantContactEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_accountantContactEmail" xlink:label="p_bus_accountantContactEmail" xlink:title="p_bus_accountantContactEmail"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_accountantContactEmail" xlink:label="h_bus_accountantContactEmail" xlink:title="h_bus_accountantContactEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_accountantContactEmail" xlink:to="h_bus_accountantContactEmail" xlink:title="all (has-hypercube): p_bus_accountantContactEmail to h_bus_accountantContactEmail" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactEmail" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_accountantContactEmail to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_assignedAccountant" xlink:label="d_bus_assignedAccountant" xlink:title="d_bus_assignedAccountant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactEmail" xlink:to="d_bus_assignedAccountant" xlink:title="hypercube-dimension: h_bus_accountantContactEmail to d_bus_assignedAccountant" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantContact" xlink:label="d_bus_accountantContact" xlink:title="d_bus_accountantContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactEmail" xlink:to="d_bus_accountantContact" xlink:title="hypercube-dimension: h_bus_accountantContactEmail to d_bus_accountantContact" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_accountantContactEmail" xlink:label="d_bus_accountantContactEmail" xlink:title="d_bus_accountantContactEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_accountantContactEmail" xlink:to="d_bus_accountantContactEmail" xlink:title="hypercube-dimension: h_bus_accountantContactEmail to d_bus_accountantContactEmail" order="4"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactEmailAddress" xlink:label="bus_accountantContactEmailAddress" xlink:title="bus_accountantContactEmailAddress Email Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContactEmail" xlink:to="bus_accountantContactEmailAddress" xlink:title="domain-member: p_bus_accountantContactEmail to bus_accountantContactEmailAddress Email Address" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_accountantContactEmailAddressUsage" xlink:label="bus_accountantContactEmailAddressUsage" xlink:title="bus_accountantContactEmailAddressUsage Email Address Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_accountantContactEmail" xlink:to="bus_accountantContactEmailAddressUsage" xlink:title="domain-member: p_bus_accountantContactEmail to bus_accountantContactEmailAddressUsage Email Address Usage" order="6"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_specifiedReportingCalendar">
    <!-- p_bus_specifiedReportingCalendar all (has-hypercube) h_bus_specifiedReportingCalendar link_bus_specifiedReportingCalendar -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_specifiedReportingCalendar" xlink:label="p_bus_specifiedReportingCalendar" xlink:title="p_bus_specifiedReportingCalendar"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_specifiedReportingCalendar" xlink:label="h_bus_specifiedReportingCalendar" xlink:title="h_bus_specifiedReportingCalendar"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="h_bus_specifiedReportingCalendar" xlink:title="all (has-hypercube): p_bus_specifiedReportingCalendar to h_bus_specifiedReportingCalendar" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_specifiedReportingCalendar" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_specifiedReportingCalendar to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_specifiedReportingCalendar" xlink:label="d_bus_specifiedReportingCalendar" xlink:title="d_bus_specifiedReportingCalendar"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_specifiedReportingCalendar" xlink:to="d_bus_specifiedReportingCalendar" xlink:title="hypercube-dimension: h_bus_specifiedReportingCalendar to d_bus_specifiedReportingCalendar" order="2"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarCode" xlink:label="bus_reportingCalendarCode" xlink:title="bus_reportingCalendarCode Reporting Calendar Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarCode" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarCode Reporting Calendar Code" order="3"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarDescription" xlink:label="bus_reportingCalendarDescription" xlink:title="bus_reportingCalendarDescription Reporting Calendar Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarDescription" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarDescription Reporting Calendar Description" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarTitle" xlink:label="bus_reportingCalendarTitle" xlink:title="bus_reportingCalendarTitle Reporting Calendar Title"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarTitle" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarTitle Reporting Calendar Title" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarPeriodType" xlink:label="bus_reportingCalendarPeriodType" xlink:title="bus_reportingCalendarPeriodType Reporting Calendar Period Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarPeriodType" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarPeriodType Reporting Calendar Period Type" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarPeriodTypeDescription" xlink:label="bus_reportingCalendarPeriodTypeDescription" xlink:title="bus_reportingCalendarPeriodTypeDescription Reporting Calendar Period Type Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarPeriodTypeDescription" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarPeriodTypeDescription Reporting Calendar Period Type Description" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarClosedStatus" xlink:label="bus_reportingCalendarClosedStatus" xlink:title="bus_reportingCalendarClosedStatus Reporting Calendar Closed Status"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarClosedStatus" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarClosedStatus Reporting Calendar Closed Status" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarPurpose" xlink:label="bus_reportingCalendarPurpose" xlink:title="bus_reportingCalendarPurpose Reporting Calendar Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarPurpose" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarPurpose Reporting Calendar Purpose" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarPurposeDescription" xlink:label="bus_reportingCalendarPurposeDescription" xlink:title="bus_reportingCalendarPurposeDescription Reporting Calendar Purpose Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="bus_reportingCalendarPurposeDescription" xlink:title="domain-member: p_bus_specifiedReportingCalendar to bus_reportingCalendarPurposeDescription Reporting Calendar Purpose Description" order="10"/>
    <!-- p_bus_specifiedReportingCalendar to targetRole link_bus_reportingCalendarPeriod -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_reportingCalendarPeriod" xlink:label="p_bus_reportingCalendarPeriod" xlink:title="p_bus_reportingCalendarPeriod Reporting Calendar_ Period"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_reportingCalendarPeriod" xlink:from="p_bus_specifiedReportingCalendar" xlink:to="p_bus_reportingCalendarPeriod" xlink:title="domain-member: p_bus_specifiedReportingCalendar to p_bus_reportingCalendarPeriod in link_bus_reportingCalendarPeriod" order="11"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_reportingCalendarPeriod">
    <!-- p_bus_reportingCalendarPeriod all (has-hypercube) h_bus_reportingCalendarPeriod link_bus_reportingCalendarPeriod -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_reportingCalendarPeriod" xlink:label="p_bus_reportingCalendarPeriod" xlink:title="p_bus_reportingCalendarPeriod"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_reportingCalendarPeriod" xlink:label="h_bus_reportingCalendarPeriod" xlink:title="h_bus_reportingCalendarPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_reportingCalendarPeriod" xlink:to="h_bus_reportingCalendarPeriod" xlink:title="all (has-hypercube): p_bus_reportingCalendarPeriod to h_bus_reportingCalendarPeriod" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_reportingCalendarPeriod" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_reportingCalendarPeriod to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_specifiedReportingCalendar" xlink:label="d_bus_specifiedReportingCalendar" xlink:title="d_bus_specifiedReportingCalendar"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_reportingCalendarPeriod" xlink:to="d_bus_specifiedReportingCalendar" xlink:title="hypercube-dimension: h_bus_reportingCalendarPeriod to d_bus_specifiedReportingCalendar" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_reportingCalendarPeriod" xlink:label="d_bus_reportingCalendarPeriod" xlink:title="d_bus_reportingCalendarPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_reportingCalendarPeriod" xlink:to="d_bus_reportingCalendarPeriod" xlink:title="hypercube-dimension: h_bus_reportingCalendarPeriod to d_bus_reportingCalendarPeriod" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_periodId" xlink:label="bus_periodId" xlink:title="bus_periodId Period ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_reportingCalendarPeriod" xlink:to="bus_periodId" xlink:title="domain-member: p_bus_reportingCalendarPeriod to bus_periodId Period ID" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_periodDescription" xlink:label="bus_periodDescription" xlink:title="bus_periodDescription Period Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_reportingCalendarPeriod" xlink:to="bus_periodDescription" xlink:title="domain-member: p_bus_reportingCalendarPeriod to bus_periodDescription Period Description" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_periodStartDate" xlink:label="bus_periodStartDate" xlink:title="bus_periodStartDate Period Start Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_reportingCalendarPeriod" xlink:to="bus_periodStartDate" xlink:title="domain-member: p_bus_reportingCalendarPeriod to bus_periodStartDate Period Start Date" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_periodEndDate" xlink:label="bus_periodEndDate" xlink:title="bus_periodEndDate Period End Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_reportingCalendarPeriod" xlink:to="bus_periodEndDate" xlink:title="domain-member: p_bus_reportingCalendarPeriod to bus_periodEndDate Period End Date" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_reportingCalendarPeriodClosedDate" xlink:label="bus_reportingCalendarPeriodClosedDate" xlink:title="bus_reportingCalendarPeriodClosedDate Reporting Calendar_ Period Closed Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_reportingCalendarPeriod" xlink:to="bus_reportingCalendarPeriodClosedDate" xlink:title="domain-member: p_bus_reportingCalendarPeriod to bus_reportingCalendarPeriodClosedDate Reporting Calendar_ Period Closed Date" order="8"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_entryHeader">
    <!-- p_cor_entryHeader all (has-hypercube) h_cor_entryHeader link_cor_entryHeader -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_entryHeader" xlink:label="p_cor_entryHeader" xlink:title="p_cor_entryHeader"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_entryHeader" xlink:label="h_cor_entryHeader" xlink:title="h_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_entryHeader" xlink:to="h_cor_entryHeader" xlink:title="all (has-hypercube): p_cor_entryHeader to h_cor_entryHeader" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entryHeader" xlink:to="cor_entryQualifierDescription" xlink:title="domain-member: p_cor_entryHeader to cor_entryQualifierDescription Entry Qualifier Description" order="20"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entryHeader" xlink:to="cor_batchIdForEntryGroup" xlink:title="domain-member: p_cor_entryHeader to cor_batchIdForEntryGroup Batch ID for Entry Group" order="21"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entryHeader" xlink:to="cor_totalDebits" xlink:title="domain-member: p_cor_entryHeader to cor_totalDebits Total Debits" order="23"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entryHeader" xlink:to="cor_totalCredits" xlink:title="domain-member: p_cor_entryHeader to cor_totalCredits Total Credits" order="24"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entryHeader" xlink:to="cor_budgetScenarioPeriodStart" xlink:title="domain-member: p_cor_entryHeader to cor_budgetScenarioPeriodStart Budget Scenario Period Start" order="27"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entryHeader" xlink:to="cor_scenarioDescription" xlink:title="domain-member: p_cor_entryHeader to cor_scenarioDescription Scenario Description" order="30"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_entryHeader" xlink:to="cor_reverse" xlink:title="domain-member: p_cor_entryHeader to cor_reverse Reverse" order="40"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_entryDetail" xlink:from="p_cor_entryHeader" xlink:to="p_cor_entryDetail" xlink:title="domain-member: p_cor_entryHeader to p_cor_entryDetail in link_cor_entryDetail" order="45"/>
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    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_muc_headerMulticurrency" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_muc_headerMulticurrency to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_muc_headerMulticurrency" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_muc_headerMulticurrency to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_muc_headerMulticurrency" xlink:label="d_muc_headerMulticurrency" xlink:title="d_muc_headerMulticurrency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_muc_headerMulticurrency" xlink:to="d_muc_headerMulticurrency" xlink:title="hypercube-dimension: h_muc_headerMulticurrency to d_muc_headerMulticurrency" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerExchangeRateDate" xlink:label="muc_headerExchangeRateDate" xlink:title="muc_headerExchangeRateDate Multicurrency Exchange Rate Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerExchangeRateDate" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerExchangeRateDate Multicurrency Exchange Rate Date" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerForeignCurrencyAmount" xlink:label="muc_headerForeignCurrencyAmount" xlink:title="muc_headerForeignCurrencyAmount Multicurrency Foreign Currency Amount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerForeignCurrencyAmount" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerForeignCurrencyAmount Multicurrency Foreign Currency Amount" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerForeignCurrency" xlink:label="muc_headerForeignCurrency" xlink:title="muc_headerForeignCurrency Multicurrency Foreign Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerForeignCurrency" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerForeignCurrency Multicurrency Foreign Currency" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerExchangeRate" xlink:label="muc_headerExchangeRate" xlink:title="muc_headerExchangeRate Multicurrency Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerExchangeRate" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerExchangeRate Multicurrency Exchange Rate" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerExchangeRateSource" xlink:label="muc_headerExchangeRateSource" xlink:title="muc_headerExchangeRateSource Multicurrency Exchange Rate Source"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerExchangeRateSource" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerExchangeRateSource Multicurrency Exchange Rate Source" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerExchangeRateType" xlink:label="muc_headerExchangeRateType" xlink:title="muc_headerExchangeRateType Multicurrency Exchange Rate Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerExchangeRateType" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerExchangeRateType Multicurrency Exchange Rate Type" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerMulticurrencyComment" xlink:label="muc_headerMulticurrencyComment" xlink:title="muc_headerMulticurrencyComment Multicurrency Comment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerMulticurrencyComment" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerMulticurrencyComment Multicurrency Comment" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerTriangulationCurrencyAmount" xlink:label="muc_headerTriangulationCurrencyAmount" xlink:title="muc_headerTriangulationCurrencyAmount Multicurrency Triangulation Currency Amount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerTriangulationCurrencyAmount" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerTriangulationCurrencyAmount Multicurrency Triangulation Currency Amount" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerTriangulationCurrency" xlink:label="muc_headerTriangulationCurrency" xlink:title="muc_headerTriangulationCurrency Multicurrency Triangulation Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerTriangulationCurrency" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerTriangulationCurrency Multicurrency Triangulation Currency" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerTriangulationExchangeRate" xlink:label="muc_headerTriangulationExchangeRate" xlink:title="muc_headerTriangulationExchangeRate Multicurrency Triangulation Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerTriangulationExchangeRate" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerTriangulationExchangeRate Multicurrency Triangulation Exchange Rate" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerTriangulationExchangeRateSource" xlink:label="muc_headerTriangulationExchangeRateSource" xlink:title="muc_headerTriangulationExchangeRateSource Multicurrency Triangulation Exchange Rate Source"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerTriangulationExchangeRateSource" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerTriangulationExchangeRateSource Multicurrency Triangulation Exchange Rate Source" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerTriangulationExchangeRateType" xlink:label="muc_headerTriangulationExchangeRateType" xlink:title="muc_headerTriangulationExchangeRateType Multicurrency Triangulation Exchange Rate Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerTriangulationExchangeRateType" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerTriangulationExchangeRateType Multicurrency Triangulation Exchange Rate Type" order="15"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerCrossTriangulationExchangeRate" xlink:label="muc_headerCrossTriangulationExchangeRate" xlink:title="muc_headerCrossTriangulationExchangeRate Multicurrency Cross Triangulation Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerCrossTriangulationExchangeRate" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerCrossTriangulationExchangeRate Multicurrency Cross Triangulation Exchange Rate" order="16"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerCrossTriangulationExchangeRateSource" xlink:label="muc_headerCrossTriangulationExchangeRateSource" xlink:title="muc_headerCrossTriangulationExchangeRateSource Multicurrency Cross Triangulation Exchange Rate Source"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerCrossTriangulationExchangeRateSource" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerCrossTriangulationExchangeRateSource Multicurrency Cross Triangulation Exchange Rate Source" order="17"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_headerCrossTriangulationExchangeRateType" xlink:label="muc_headerCrossTriangulationExchangeRateType" xlink:title="muc_headerCrossTriangulationExchangeRateType Multicurrency Cross Triangulation Exchange Rate Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_headerMulticurrency" xlink:to="muc_headerCrossTriangulationExchangeRateType" xlink:title="domain-member: p_muc_headerMulticurrency to muc_headerCrossTriangulationExchangeRateType Multicurrency Cross Triangulation Exchange Rate Type" order="18"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_headerheaderTax">
    <!-- p_cor_headerheaderTax all (has-hypercube) h_cor_headerheaderTax link_cor_headerheaderTax -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_headerheaderTax" xlink:label="p_cor_headerheaderTax" xlink:title="p_cor_headerheaderTax"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_headerheaderTax" xlink:label="h_cor_headerheaderTax" xlink:title="h_cor_headerheaderTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_headerheaderTax" xlink:to="h_cor_headerheaderTax" xlink:title="all (has-hypercube): p_cor_headerheaderTax to h_cor_headerheaderTax" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_headerheaderTax" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_headerheaderTax to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_headerheaderTax" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_headerheaderTax to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_headerheaderTax" xlink:label="d_cor_headerheaderTax" xlink:title="d_cor_headerheaderTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_headerheaderTax" xlink:to="d_cor_headerheaderTax" xlink:title="hypercube-dimension: h_cor_headerheaderTax to d_cor_headerheaderTax" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxAuthority" xlink:label="cor_headerTaxAuthority" xlink:title="cor_headerTaxAuthority Tax Authority"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxAuthority" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxAuthority Tax Authority" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxTableCode" xlink:label="cor_headerTaxTableCode" xlink:title="cor_headerTaxTableCode Tax Table Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxTableCode" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxTableCode Tax Table Code" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxDescription" xlink:label="cor_headerTaxDescription" xlink:title="cor_headerTaxDescription Tax Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxDescription" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxDescription Tax Description" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_amountOfheaderTaxes" xlink:label="cor_amountOfheaderTaxes" xlink:title="cor_amountOfheaderTaxes Amount of Taxes"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_amountOfheaderTaxes" xlink:title="domain-member: p_cor_headerheaderTax to cor_amountOfheaderTaxes Amount of Taxes" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_basisForheaderTaxation" xlink:label="cor_basisForheaderTaxation" xlink:title="cor_basisForheaderTaxation Basis for Taxation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_basisForheaderTaxation" xlink:title="domain-member: p_cor_headerheaderTax to cor_basisForheaderTaxation Basis for Taxation" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxPercentageRate" xlink:label="cor_headerTaxPercentageRate" xlink:title="cor_headerTaxPercentageRate Tax Percentage Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxPercentageRate" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxPercentageRate Tax Percentage Rate" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxCategory" xlink:label="cor_headerTaxCategory" xlink:title="cor_headerTaxCategory Tax Category"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxCategory" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxCategory Tax Category" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxCommentExemptionReason" xlink:label="cor_headerTaxCommentExemptionReason" xlink:title="cor_headerTaxCommentExemptionReason Tax Comment/Exemption Reason"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxCommentExemptionReason" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxCommentExemptionReason Tax Comment/Exemption Reason" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxAmountInForeignCurrency" xlink:label="cor_headerTaxAmountInForeignCurrency" xlink:title="cor_headerTaxAmountInForeignCurrency Tax Amount in Foreign Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxAmountInForeignCurrency" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxAmountInForeignCurrency Tax Amount in Foreign Currency" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxForeignCurrency" xlink:label="cor_headerTaxForeignCurrency" xlink:title="cor_headerTaxForeignCurrency Tax Foreign Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxForeignCurrency" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxForeignCurrency Tax Foreign Currency" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxExchangeRateDate" xlink:label="cor_headerTaxExchangeRateDate" xlink:title="cor_headerTaxExchangeRateDate Tax Exchange Rate Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxExchangeRateDate" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxExchangeRateDate Tax Exchange Rate Date" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxExchangeRate" xlink:label="cor_headerTaxExchangeRate" xlink:title="cor_headerTaxExchangeRate Tax Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxExchangeRate" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxExchangeRate Tax Exchange Rate" order="15"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxExchangeRateSource" xlink:label="cor_headerTaxExchangeRateSource" xlink:title="cor_headerTaxExchangeRateSource Tax Exchange Rate Source"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxExchangeRateSource" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxExchangeRateSource Tax Exchange Rate Source" order="16"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxExchangeRateType" xlink:label="cor_headerTaxExchangeRateType" xlink:title="cor_headerTaxExchangeRateType Tax Exchange Rate Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxExchangeRateType" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxExchangeRateType Tax Exchange Rate Type" order="17"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxExchangeRateComment" xlink:label="cor_headerTaxExchangeRateComment" xlink:title="cor_headerTaxExchangeRateComment Tax Exchange Rate Comment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxExchangeRateComment" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxExchangeRateComment Tax Exchange Rate Comment" order="18"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxAmountInTriangulationCurrency" xlink:label="cor_headerTaxAmountInTriangulationCurrency" xlink:title="cor_headerTaxAmountInTriangulationCurrency Tax Amount in Triangulation Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxAmountInTriangulationCurrency" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxAmountInTriangulationCurrency Tax Amount in Triangulation Currency" order="19"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxTriangulationCurrency" xlink:label="cor_headerTaxTriangulationCurrency" xlink:title="cor_headerTaxTriangulationCurrency Tax Triangulation Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxTriangulationCurrency" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxTriangulationCurrency Tax Triangulation Currency" order="20"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxTriangulationCurrencyExchangeRate" xlink:label="cor_headerTaxTriangulationCurrencyExchangeRate" xlink:title="cor_headerTaxTriangulationCurrencyExchangeRate Tax Triangulation Currency Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxTriangulationCurrencyExchangeRate" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxTriangulationCurrencyExchangeRate Tax Triangulation Currency Exchange Rate" order="21"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxTriangulationCurrencyExchangeRateSource" xlink:label="cor_headerTaxTriangulationCurrencyExchangeRateSource" xlink:title="cor_headerTaxTriangulationCurrencyExchangeRateSource Tax Triangulation Currency Exchange Rate Source"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxTriangulationCurrencyExchangeRateSource" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxTriangulationCurrencyExchangeRateSource Tax Triangulation Currency Exchange Rate Source" order="22"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxTriangulationCurrencyExchangeRateType" xlink:label="cor_headerTaxTriangulationCurrencyExchangeRateType" xlink:title="cor_headerTaxTriangulationCurrencyExchangeRateType Tax Triangulation Currency Exchange Rate Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_headerheaderTax" xlink:to="cor_headerTaxTriangulationCurrencyExchangeRateType" xlink:title="domain-member: p_cor_headerheaderTax to cor_headerTaxTriangulationCurrencyExchangeRateType Tax Triangulation Currency Exchange Rate Type" order="23"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_headerTaxForeignToTriangulationCurrencyExchangeRate" xlink:label="cor_headerTaxForeignToTriangulationCurrencyExchangeRate" xlink:title="cor_headerTaxForeignToTriangulationCurrencyExchangeRate Tax Foreign to Triangulation Currency Exchange Rate"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_detailTax" xlink:from="p_cor_entryDetail" xlink:to="p_cor_detailTax" xlink:title="domain-member: p_cor_entryDetail to p_cor_detailTax in link_cor_detailTax" order="50"/>
    <!-- p_cor_entryDetail to targetRole link_cor_detailIdentifierReference -->
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    <!-- p_cor_entryDetail to targetRole link_bus_detailMeasurable -->
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_detailDepreciationMortgage" xlink:from="p_cor_entryDetail" xlink:to="p_bus_detailDepreciationMortgage" xlink:title="domain-member: p_cor_entryDetail to p_bus_detailDepreciationMortgage in link_bus_detailDepreciationMortgage" order="55"/>
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    <!-- hypercube-dimension -->
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_detailAccountIdentifier" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_detailAccountIdentifier to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_detailAccountIdentifier" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_detailAccountIdentifier to d_cor_entryDetail" order="3"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountNumber" xlink:label="cor_accountNumber" xlink:title="cor_accountNumber Account Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountNumber" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountNumber Account Number" order="4"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountDescription" xlink:label="cor_accountDescription" xlink:title="cor_accountDescription Account Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountDescription" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountDescription Account Description" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountClassification" xlink:label="cor_accountClassification" xlink:title="cor_accountClassification Account Classification"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountClassification" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountClassification Account Classification" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountClassificationDescription" xlink:label="cor_accountClassificationDescription" xlink:title="cor_accountClassificationDescription Account Classification Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountClassificationDescription" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountClassificationDescription Account Classification Description" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_parentAccountNumber" xlink:label="cor_parentAccountNumber" xlink:title="cor_parentAccountNumber Parent Account Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_parentAccountNumber" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_parentAccountNumber Parent Account Number" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_purposeOfAccount" xlink:label="cor_purposeOfAccount" xlink:title="cor_purposeOfAccount Purpose of Account"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_purposeOfAccount" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_purposeOfAccount Purpose of Account" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_purposeOfAccountDescription" xlink:label="cor_purposeOfAccountDescription" xlink:title="cor_purposeOfAccountDescription Purpose of Account Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_purposeOfAccountDescription" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_purposeOfAccountDescription Purpose of Account Description" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountType" xlink:label="cor_accountType" xlink:title="cor_accountType Account Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountType" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountType Account Type" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountTypeDescription" xlink:label="cor_accountTypeDescription" xlink:title="cor_accountTypeDescription Account Type Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountTypeDescription" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountTypeDescription Account Type Description" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountingMethod" xlink:label="cor_accountingMethod" xlink:title="cor_accountingMethod Accounting Method"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountingMethod" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountingMethod Accounting Method" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountingMethodDescription" xlink:label="cor_accountingMethodDescription" xlink:title="cor_accountingMethodDescription Accounting Method Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountingMethodDescription" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountingMethodDescription Accounting Method Description" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountingMethodPurpose" xlink:label="cor_accountingMethodPurpose" xlink:title="cor_accountingMethodPurpose Accounting Method Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountingMethodPurpose" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountingMethodPurpose Accounting Method Purpose" order="15"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountingMethodPurposeDescription" xlink:label="cor_accountingMethodPurposeDescription" xlink:title="cor_accountingMethodPurposeDescription Accounting Method Purpose Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountingMethodPurposeDescription" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountingMethodPurposeDescription Accounting Method Purpose Description" order="16"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_accountActive" xlink:label="cor_accountActive" xlink:title="cor_accountActive Account Active"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_detailAccountIdentifier" xlink:to="cor_accountActive" xlink:title="domain-member: p_cor_detailAccountIdentifier to cor_accountActive Account Active" order="17"/>
    <!-- p_cor_detailAccountIdentifier to targetRole link_cor_subaccount -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_subaccount" xlink:label="p_cor_subaccount" xlink:title="p_cor_subaccount Subaccount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_subaccount" xlink:from="p_cor_detailAccountIdentifier" xlink:to="p_cor_subaccount" xlink:title="domain-member: p_cor_detailAccountIdentifier to p_cor_subaccount in link_cor_subaccount" order="18"/>
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  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_subaccount">
    <!-- p_cor_subaccount all (has-hypercube) h_cor_subaccount link_cor_subaccount -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_subaccount" xlink:label="p_cor_subaccount" xlink:title="p_cor_subaccount"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_subaccount" xlink:label="h_cor_subaccount" xlink:title="h_cor_subaccount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_subaccount" xlink:to="h_cor_subaccount" xlink:title="all (has-hypercube): p_cor_subaccount to h_cor_subaccount" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_subaccount" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_subaccount to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_subaccount" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_subaccount to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_subaccount" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_subaccount to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_subaccount" xlink:label="d_cor_subaccount" xlink:title="d_cor_subaccount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_subaccount" xlink:to="d_cor_subaccount" xlink:title="hypercube-dimension: h_cor_subaccount to d_cor_subaccount" order="4"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_subaccountDescription" xlink:label="cor_subaccountDescription" xlink:title="cor_subaccountDescription Subaccount Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_subaccount" xlink:to="cor_subaccountDescription" xlink:title="domain-member: p_cor_subaccount to cor_subaccountDescription Subaccount Description" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_subaccountId" xlink:label="cor_subaccountId" xlink:title="cor_subaccountId Subaccount ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_subaccount" xlink:to="cor_subaccountId" xlink:title="domain-member: p_cor_subaccount to cor_subaccountId Subaccount ID" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_subaccountType" xlink:label="cor_subaccountType" xlink:title="cor_subaccountType Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_subaccount" xlink:to="cor_subaccountType" xlink:title="domain-member: p_cor_subaccount to cor_subaccountType Type" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_parentSubaccountCode" xlink:label="cor_parentSubaccountCode" xlink:title="cor_parentSubaccountCode Parent Subaccount Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_subaccount" xlink:to="cor_parentSubaccountCode" xlink:title="domain-member: p_cor_subaccount to cor_parentSubaccountCode Parent Subaccount Code" order="8"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_muc_detailMulticurrency">
    <!-- p_muc_detailMulticurrency all (has-hypercube) h_muc_detailMulticurrency link_muc_detailMulticurrency -->
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#p_muc_detailMulticurrency" xlink:label="p_muc_detailMulticurrency" xlink:title="p_muc_detailMulticurrency"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_muc_detailMulticurrency" xlink:label="h_muc_detailMulticurrency" xlink:title="h_muc_detailMulticurrency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_muc_detailMulticurrency" xlink:to="h_muc_detailMulticurrency" xlink:title="all (has-hypercube): p_muc_detailMulticurrency to h_muc_detailMulticurrency" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_muc_detailMulticurrency" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_muc_detailMulticurrency to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_muc_detailMulticurrency" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_muc_detailMulticurrency to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_muc_detailMulticurrency" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_muc_detailMulticurrency to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_muc_detailMulticurrency" xlink:label="d_muc_detailMulticurrency" xlink:title="d_muc_detailMulticurrency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_muc_detailMulticurrency" xlink:to="d_muc_detailMulticurrency" xlink:title="hypercube-dimension: h_muc_detailMulticurrency to d_muc_detailMulticurrency" order="4"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailExchangeRateDate" xlink:label="muc_detailExchangeRateDate" xlink:title="muc_detailExchangeRateDate Multicurrency Exchange Rate Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailExchangeRateDate" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailExchangeRateDate Multicurrency Exchange Rate Date" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailForeignCurrencyAmount" xlink:label="muc_detailForeignCurrencyAmount" xlink:title="muc_detailForeignCurrencyAmount Multicurrency Foreign Currency Amount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailForeignCurrencyAmount" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailForeignCurrencyAmount Multicurrency Foreign Currency Amount" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailForeignCurrency" xlink:label="muc_detailForeignCurrency" xlink:title="muc_detailForeignCurrency Multicurrency Foreign Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailForeignCurrency" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailForeignCurrency Multicurrency Foreign Currency" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailExchangeRate" xlink:label="muc_detailExchangeRate" xlink:title="muc_detailExchangeRate Multicurrency Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailExchangeRate" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailExchangeRate Multicurrency Exchange Rate" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailExchangeRateSource" xlink:label="muc_detailExchangeRateSource" xlink:title="muc_detailExchangeRateSource Multicurrency Exchange Rate Source"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailExchangeRateSource" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailExchangeRateSource Multicurrency Exchange Rate Source" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailExchangeRateType" xlink:label="muc_detailExchangeRateType" xlink:title="muc_detailExchangeRateType Multicurrency Exchange Rate Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailExchangeRateType" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailExchangeRateType Multicurrency Exchange Rate Type" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailComment" xlink:label="muc_detailComment" xlink:title="muc_detailComment Multicurrency Comment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailComment" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailComment Multicurrency Comment" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailTriangulationCurrencyAmount" xlink:label="muc_detailTriangulationCurrencyAmount" xlink:title="muc_detailTriangulationCurrencyAmount Multicurrency Triangulation Currency Amount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailTriangulationCurrencyAmount" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailTriangulationCurrencyAmount Multicurrency Triangulation Currency Amount" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailTriangulationCurrency" xlink:label="muc_detailTriangulationCurrency" xlink:title="muc_detailTriangulationCurrency Multicurrency Triangulation Currency"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailTriangulationCurrency" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailTriangulationCurrency Multicurrency Triangulation Currency" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailTriangulationExchangeRate" xlink:label="muc_detailTriangulationExchangeRate" xlink:title="muc_detailTriangulationExchangeRate Multicurrency Triangulation Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailTriangulationExchangeRate" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailTriangulationExchangeRate Multicurrency Triangulation Exchange Rate" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailTriangulationExchangeRateSource" xlink:label="muc_detailTriangulationExchangeRateSource" xlink:title="muc_detailTriangulationExchangeRateSource Multicurrency Triangulation Exchange Rate Source"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailTriangulationExchangeRateSource" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailTriangulationExchangeRateSource Multicurrency Triangulation Exchange Rate Source" order="15"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailTriangulationExchangeRateType" xlink:label="muc_detailTriangulationExchangeRateType" xlink:title="muc_detailTriangulationExchangeRateType Multicurrency Triangulation Exchange Rate Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailTriangulationExchangeRateType" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailTriangulationExchangeRateType Multicurrency Triangulation Exchange Rate Type" order="16"/>
    <link:loc xlink:type="locator" xlink:href="../../muc/muc-oim-2026-12-31.xsd#muc_detailCrossTriangulationExchangeRate" xlink:label="muc_detailCrossTriangulationExchangeRate" xlink:title="muc_detailCrossTriangulationExchangeRate Multicurrency Cross Triangulation Exchange Rate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_muc_detailMulticurrency" xlink:to="muc_detailCrossTriangulationExchangeRate" xlink:title="domain-member: p_muc_detailMulticurrency to muc_detailCrossTriangulationExchangeRate Multicurrency Cross Triangulation Exchange Rate" order="17"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_externalAuthority" xlink:from="p_cor_detailIdentifierReference" xlink:to="p_cor_externalAuthority" xlink:title="domain-member: p_cor_detailIdentifierReference to p_cor_externalAuthority in link_cor_externalAuthority" order="13"/>
    <!-- p_cor_detailIdentifierReference to targetRole link_cor_identifierPhone -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierPhone" xlink:label="p_cor_identifierPhone" xlink:title="p_cor_identifierPhone Identifier_ Phone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierPhone" xlink:from="p_cor_detailIdentifierReference" xlink:to="p_cor_identifierPhone" xlink:title="domain-member: p_cor_detailIdentifierReference to p_cor_identifierPhone in link_cor_identifierPhone" order="14"/>
    <!-- p_cor_detailIdentifierReference to targetRole link_cor_identifierFax -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierFax" xlink:label="p_cor_identifierFax" xlink:title="p_cor_identifierFax Identifier_ Fax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierFax" xlink:from="p_cor_detailIdentifierReference" xlink:to="p_cor_identifierFax" xlink:title="domain-member: p_cor_detailIdentifierReference to p_cor_identifierFax in link_cor_identifierFax" order="15"/>
    <!-- p_cor_detailIdentifierReference to targetRole link_cor_identifierEmail -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierEmail" xlink:label="p_cor_identifierEmail" xlink:title="p_cor_identifierEmail Identifier_ Email"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierEmail" xlink:from="p_cor_detailIdentifierReference" xlink:to="p_cor_identifierEmail" xlink:title="domain-member: p_cor_detailIdentifierReference to p_cor_identifierEmail in link_cor_identifierEmail" order="16"/>
    <!-- p_cor_detailIdentifierReference to targetRole link_cor_identifierAddress -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierAddress" xlink:label="p_cor_identifierAddress" xlink:title="p_cor_identifierAddress Identifier_ Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierAddress" xlink:from="p_cor_detailIdentifierReference" xlink:to="p_cor_identifierAddress" xlink:title="domain-member: p_cor_detailIdentifierReference to p_cor_identifierAddress in link_cor_identifierAddress" order="17"/>
    <!-- p_cor_detailIdentifierReference to targetRole link_cor_identifierContact -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierContact" xlink:label="p_cor_identifierContact" xlink:title="p_cor_identifierContact Identifier_ Contact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierContact" xlink:from="p_cor_detailIdentifierReference" xlink:to="p_cor_identifierContact" xlink:title="domain-member: p_cor_detailIdentifierReference to p_cor_identifierContact in link_cor_identifierContact" order="18"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_externalAuthority">
    <!-- p_cor_externalAuthority all (has-hypercube) h_cor_externalAuthority link_cor_externalAuthority -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_externalAuthority" xlink:label="p_cor_externalAuthority" xlink:title="p_cor_externalAuthority"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_externalAuthority" xlink:label="h_cor_externalAuthority" xlink:title="h_cor_externalAuthority"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_externalAuthority" xlink:to="h_cor_externalAuthority" xlink:title="all (has-hypercube): p_cor_externalAuthority to h_cor_externalAuthority" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_externalAuthority" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_externalAuthority to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_externalAuthority" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_externalAuthority to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_externalAuthority" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_externalAuthority to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_externalAuthority" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_cor_externalAuthority to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_externalAuthority" xlink:label="d_cor_externalAuthority" xlink:title="d_cor_externalAuthority"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_externalAuthority" xlink:to="d_cor_externalAuthority" xlink:title="hypercube-dimension: h_cor_externalAuthority to d_cor_externalAuthority" order="5"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_externalAuthorityCode" xlink:label="cor_externalAuthorityCode" xlink:title="cor_externalAuthorityCode External Authority Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_externalAuthority" xlink:to="cor_externalAuthorityCode" xlink:title="domain-member: p_cor_externalAuthority to cor_externalAuthorityCode External Authority Code" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_externalAuthorityName" xlink:label="cor_externalAuthorityName" xlink:title="cor_externalAuthorityName External Authority Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_externalAuthority" xlink:to="cor_externalAuthorityName" xlink:title="domain-member: p_cor_externalAuthority to cor_externalAuthorityName External Authority Name" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_externalAuthorityVerificationDate" xlink:label="cor_externalAuthorityVerificationDate" xlink:title="cor_externalAuthorityVerificationDate External Authority Verification Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_externalAuthority" xlink:to="cor_externalAuthorityVerificationDate" xlink:title="domain-member: p_cor_externalAuthority to cor_externalAuthorityVerificationDate External Authority Verification Date" order="8"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierPhone">
    <!-- p_cor_identifierPhone all (has-hypercube) h_cor_identifierPhone link_cor_identifierPhone -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierPhone" xlink:label="p_cor_identifierPhone" xlink:title="p_cor_identifierPhone"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_identifierPhone" xlink:label="h_cor_identifierPhone" xlink:title="h_cor_identifierPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_identifierPhone" xlink:to="h_cor_identifierPhone" xlink:title="all (has-hypercube): p_cor_identifierPhone to h_cor_identifierPhone" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierPhone" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_identifierPhone to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierPhone" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_identifierPhone to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierPhone" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_identifierPhone to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierPhone" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_cor_identifierPhone to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierPhone" xlink:label="d_cor_identifierPhone" xlink:title="d_cor_identifierPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierPhone" xlink:to="d_cor_identifierPhone" xlink:title="hypercube-dimension: h_cor_identifierPhone to d_cor_identifierPhone" order="5"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_phoneNumber" xlink:label="cor_phoneNumber" xlink:title="cor_phoneNumber Phone Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierPhone" xlink:to="cor_phoneNumber" xlink:title="domain-member: p_cor_identifierPhone to cor_phoneNumber Phone Number" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_phoneNumberDescription" xlink:label="cor_phoneNumberDescription" xlink:title="cor_phoneNumberDescription Phone Number Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierPhone" xlink:to="cor_phoneNumberDescription" xlink:title="domain-member: p_cor_identifierPhone to cor_phoneNumberDescription Phone Number Description" order="7"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierFax">
    <!-- p_cor_identifierFax all (has-hypercube) h_cor_identifierFax link_cor_identifierFax -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierFax" xlink:label="p_cor_identifierFax" xlink:title="p_cor_identifierFax"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_identifierFax" xlink:label="h_cor_identifierFax" xlink:title="h_cor_identifierFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_identifierFax" xlink:to="h_cor_identifierFax" xlink:title="all (has-hypercube): p_cor_identifierFax to h_cor_identifierFax" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierFax" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_identifierFax to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierFax" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_identifierFax to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierFax" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_identifierFax to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierFax" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_cor_identifierFax to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierFax" xlink:label="d_cor_identifierFax" xlink:title="d_cor_identifierFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierFax" xlink:to="d_cor_identifierFax" xlink:title="hypercube-dimension: h_cor_identifierFax to d_cor_identifierFax" order="5"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierFaxNumber" xlink:label="cor_identifierFaxNumber" xlink:title="cor_identifierFaxNumber Fax Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierFax" xlink:to="cor_identifierFaxNumber" xlink:title="domain-member: p_cor_identifierFax to cor_identifierFaxNumber Fax Number" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierFaxNumberUsage" xlink:label="cor_identifierFaxNumberUsage" xlink:title="cor_identifierFaxNumberUsage Fax Number Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierFax" xlink:to="cor_identifierFaxNumberUsage" xlink:title="domain-member: p_cor_identifierFax to cor_identifierFaxNumberUsage Fax Number Usage" order="7"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierEmail">
    <!-- p_cor_identifierEmail all (has-hypercube) h_cor_identifierEmail link_cor_identifierEmail -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierEmail" xlink:label="p_cor_identifierEmail" xlink:title="p_cor_identifierEmail"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_identifierEmail" xlink:label="h_cor_identifierEmail" xlink:title="h_cor_identifierEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_identifierEmail" xlink:to="h_cor_identifierEmail" xlink:title="all (has-hypercube): p_cor_identifierEmail to h_cor_identifierEmail" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierEmail" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_identifierEmail to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierEmail" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_identifierEmail to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierEmail" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_identifierEmail to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierEmail" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_cor_identifierEmail to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierEmail" xlink:label="d_cor_identifierEmail" xlink:title="d_cor_identifierEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierEmail" xlink:to="d_cor_identifierEmail" xlink:title="hypercube-dimension: h_cor_identifierEmail to d_cor_identifierEmail" order="5"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierEmailAddress" xlink:label="cor_identifierEmailAddress" xlink:title="cor_identifierEmailAddress Email Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierEmail" xlink:to="cor_identifierEmailAddress" xlink:title="domain-member: p_cor_identifierEmail to cor_identifierEmailAddress Email Address" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierEmailAddressUsage" xlink:label="cor_identifierEmailAddressUsage" xlink:title="cor_identifierEmailAddressUsage Email Address Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierEmail" xlink:to="cor_identifierEmailAddressUsage" xlink:title="domain-member: p_cor_identifierEmail to cor_identifierEmailAddressUsage Email Address Usage" order="7"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierAddress">
    <!-- p_cor_identifierAddress all (has-hypercube) h_cor_identifierAddress link_cor_identifierAddress -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierAddress" xlink:label="p_cor_identifierAddress" xlink:title="p_cor_identifierAddress"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_identifierAddress" xlink:label="h_cor_identifierAddress" xlink:title="h_cor_identifierAddress"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_identifierAddress" xlink:to="h_cor_identifierAddress" xlink:title="all (has-hypercube): p_cor_identifierAddress to h_cor_identifierAddress" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierAddress" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_identifierAddress to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierAddress" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_identifierAddress to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierAddress" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_identifierAddress to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierAddress" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_cor_identifierAddress to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierAddress" xlink:label="d_cor_identifierAddress" xlink:title="d_cor_identifierAddress"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierAddress" xlink:to="d_cor_identifierAddress" xlink:title="hypercube-dimension: h_cor_identifierAddress to d_cor_identifierAddress" order="5"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierAddressDescription" xlink:label="cor_identifierAddressDescription" xlink:title="cor_identifierAddressDescription Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierAddressDescription" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierAddressDescription Description" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierAddressPurpose" xlink:label="cor_identifierAddressPurpose" xlink:title="cor_identifierAddressPurpose Purpose"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierAddressPurpose" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierAddressPurpose Purpose" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierLocationId" xlink:label="cor_identifierLocationId" xlink:title="cor_identifierLocationId Location ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierLocationId" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierLocationId Location ID" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierBuildingNumber" xlink:label="cor_identifierBuildingNumber" xlink:title="cor_identifierBuildingNumber Building Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierBuildingNumber" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierBuildingNumber Building Number" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierStreet" xlink:label="cor_identifierStreet" xlink:title="cor_identifierStreet Street"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierStreet" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierStreet Street" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierAddressDetail" xlink:label="cor_identifierAddressDetail" xlink:title="cor_identifierAddressDetail Address Detail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierAddressDetail" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierAddressDetail Address Detail" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierCity" xlink:label="cor_identifierCity" xlink:title="cor_identifierCity City"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierCity" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierCity City" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierStateOrProvince" xlink:label="cor_identifierStateOrProvince" xlink:title="cor_identifierStateOrProvince State or Province"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierStateOrProvince" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierStateOrProvince State or Province" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierCountry" xlink:label="cor_identifierCountry" xlink:title="cor_identifierCountry Country"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierCountry" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierCountry Country" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierZipOrPostalCode" xlink:label="cor_identifierZipOrPostalCode" xlink:title="cor_identifierZipOrPostalCode Zip or Postal Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierAddress" xlink:to="cor_identifierZipOrPostalCode" xlink:title="domain-member: p_cor_identifierAddress to cor_identifierZipOrPostalCode Zip or Postal Code" order="15"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_cor_identifierContact">
    <!-- p_cor_identifierContact all (has-hypercube) h_cor_identifierContact link_cor_identifierContact -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#p_cor_identifierContact" xlink:label="p_cor_identifierContact" xlink:title="p_cor_identifierContact"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_cor_identifierContact" xlink:label="h_cor_identifierContact" xlink:title="h_cor_identifierContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_cor_identifierContact" xlink:to="h_cor_identifierContact" xlink:title="all (has-hypercube): p_cor_identifierContact to h_cor_identifierContact" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierContact" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_cor_identifierContact to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierContact" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_cor_identifierContact to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierContact" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_cor_identifierContact to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierContact" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_cor_identifierContact to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierContact" xlink:label="d_cor_identifierContact" xlink:title="d_cor_identifierContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_cor_identifierContact" xlink:to="d_cor_identifierContact" xlink:title="hypercube-dimension: h_cor_identifierContact to d_cor_identifierContact" order="5"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactPrefix" xlink:label="cor_identifierContactPrefix" xlink:title="cor_identifierContactPrefix Contact Prefix"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactPrefix" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactPrefix Contact Prefix" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactLastName" xlink:label="cor_identifierContactLastName" xlink:title="cor_identifierContactLastName Contact Last Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactLastName" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactLastName Contact Last Name" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactFirstName" xlink:label="cor_identifierContactFirstName" xlink:title="cor_identifierContactFirstName Contact First Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactFirstName" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactFirstName Contact First Name" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactSuffix" xlink:label="cor_identifierContactSuffix" xlink:title="cor_identifierContactSuffix Contact Suffix"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactSuffix" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactSuffix Contact Suffix" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactAttentionLine" xlink:label="cor_identifierContactAttentionLine" xlink:title="cor_identifierContactAttentionLine Contact Attention Line"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactAttentionLine" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactAttentionLine Contact Attention Line" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactPositionRole" xlink:label="cor_identifierContactPositionRole" xlink:title="cor_identifierContactPositionRole Contact Position Role"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactPositionRole" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactPositionRole Contact Position Role" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactidentifierContactType" xlink:label="cor_identifierContactidentifierContactType" xlink:title="cor_identifierContactidentifierContactType Contact Contact Type"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactidentifierContactType" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactidentifierContactType Contact Contact Type" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifierContactLocationIdCrossReference" xlink:label="cor_identifierContactLocationIdCrossReference" xlink:title="cor_identifierContactLocationIdCrossReference Contact Location ID cross reference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifierContactLocationIdCrossReference" xlink:title="domain-member: p_cor_identifierContact to cor_identifierContactLocationIdCrossReference Contact Location ID cross reference" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../cor/cor-oim-2026-12-31.xsd#cor_identifieridentifierContactActive" xlink:label="cor_identifieridentifierContactActive" xlink:title="cor_identifieridentifierContactActive Contact Active"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_cor_identifierContact" xlink:to="cor_identifieridentifierContactActive" xlink:title="domain-member: p_cor_identifierContact to cor_identifieridentifierContactActive Contact Active" order="14"/>
    <!-- p_cor_identifierContact to targetRole link_bus_identifierContactPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_identifierContactPhone" xlink:label="p_bus_identifierContactPhone" xlink:title="p_bus_identifierContactPhone Contact_ Phone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_identifierContactPhone" xlink:from="p_cor_identifierContact" xlink:to="p_bus_identifierContactPhone" xlink:title="domain-member: p_cor_identifierContact to p_bus_identifierContactPhone in link_bus_identifierContactPhone" order="15"/>
    <!-- p_cor_identifierContact to targetRole link_bus_identifierContactFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_identifierContactFax" xlink:label="p_bus_identifierContactFax" xlink:title="p_bus_identifierContactFax Contact_ Fax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_identifierContactFax" xlink:from="p_cor_identifierContact" xlink:to="p_bus_identifierContactFax" xlink:title="domain-member: p_cor_identifierContact to p_bus_identifierContactFax in link_bus_identifierContactFax" order="16"/>
    <!-- p_cor_identifierContact to targetRole link_bus_identifierContactEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_identifierContactEmail" xlink:label="p_bus_identifierContactEmail" xlink:title="p_bus_identifierContactEmail Contact_ Email"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xbrldt:targetRole="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_identifierContactEmail" xlink:from="p_cor_identifierContact" xlink:to="p_bus_identifierContactEmail" xlink:title="domain-member: p_cor_identifierContact to p_bus_identifierContactEmail in link_bus_identifierContactEmail" order="17"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_identifierContactPhone">
    <!-- p_bus_identifierContactPhone all (has-hypercube) h_bus_identifierContactPhone link_bus_identifierContactPhone -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_identifierContactPhone" xlink:label="p_bus_identifierContactPhone" xlink:title="p_bus_identifierContactPhone"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_identifierContactPhone" xlink:label="h_bus_identifierContactPhone" xlink:title="h_bus_identifierContactPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_identifierContactPhone" xlink:to="h_bus_identifierContactPhone" xlink:title="all (has-hypercube): p_bus_identifierContactPhone to h_bus_identifierContactPhone" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactPhone" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_identifierContactPhone to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactPhone" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_bus_identifierContactPhone to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactPhone" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_bus_identifierContactPhone to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactPhone" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_bus_identifierContactPhone to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierContact" xlink:label="d_cor_identifierContact" xlink:title="d_cor_identifierContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactPhone" xlink:to="d_cor_identifierContact" xlink:title="hypercube-dimension: h_bus_identifierContactPhone to d_cor_identifierContact" order="5"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_identifierContactPhone" xlink:label="d_bus_identifierContactPhone" xlink:title="d_bus_identifierContactPhone"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactPhone" xlink:to="d_bus_identifierContactPhone" xlink:title="hypercube-dimension: h_bus_identifierContactPhone to d_bus_identifierContactPhone" order="6"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_identifierContactPhoneNumber" xlink:label="bus_identifierContactPhoneNumber" xlink:title="bus_identifierContactPhoneNumber Phone Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_identifierContactPhone" xlink:to="bus_identifierContactPhoneNumber" xlink:title="domain-member: p_bus_identifierContactPhone to bus_identifierContactPhoneNumber Phone Number" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_identifierContactPhoneNumberDescription" xlink:label="bus_identifierContactPhoneNumberDescription" xlink:title="bus_identifierContactPhoneNumberDescription Phone Number Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_identifierContactPhone" xlink:to="bus_identifierContactPhoneNumberDescription" xlink:title="domain-member: p_bus_identifierContactPhone to bus_identifierContactPhoneNumberDescription Phone Number Description" order="8"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_identifierContactFax">
    <!-- p_bus_identifierContactFax all (has-hypercube) h_bus_identifierContactFax link_bus_identifierContactFax -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_identifierContactFax" xlink:label="p_bus_identifierContactFax" xlink:title="p_bus_identifierContactFax"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_identifierContactFax" xlink:label="h_bus_identifierContactFax" xlink:title="h_bus_identifierContactFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_identifierContactFax" xlink:to="h_bus_identifierContactFax" xlink:title="all (has-hypercube): p_bus_identifierContactFax to h_bus_identifierContactFax" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactFax" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_identifierContactFax to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactFax" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_bus_identifierContactFax to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactFax" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_bus_identifierContactFax to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactFax" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_bus_identifierContactFax to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierContact" xlink:label="d_cor_identifierContact" xlink:title="d_cor_identifierContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactFax" xlink:to="d_cor_identifierContact" xlink:title="hypercube-dimension: h_bus_identifierContactFax to d_cor_identifierContact" order="5"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_identifierContactFax" xlink:label="d_bus_identifierContactFax" xlink:title="d_bus_identifierContactFax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactFax" xlink:to="d_bus_identifierContactFax" xlink:title="hypercube-dimension: h_bus_identifierContactFax to d_bus_identifierContactFax" order="6"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_identifierContactFaxNumber" xlink:label="bus_identifierContactFaxNumber" xlink:title="bus_identifierContactFaxNumber Fax Number"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_identifierContactFax" xlink:to="bus_identifierContactFaxNumber" xlink:title="domain-member: p_bus_identifierContactFax to bus_identifierContactFaxNumber Fax Number" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_identifierContactFaxNumberUsage" xlink:label="bus_identifierContactFaxNumberUsage" xlink:title="bus_identifierContactFaxNumberUsage Fax Number Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_identifierContactFax" xlink:to="bus_identifierContactFaxNumberUsage" xlink:title="domain-member: p_bus_identifierContactFax to bus_identifierContactFaxNumberUsage Fax Number Usage" order="8"/>
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  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_identifierContactEmail">
    <!-- p_bus_identifierContactEmail all (has-hypercube) h_bus_identifierContactEmail link_bus_identifierContactEmail -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_identifierContactEmail" xlink:label="p_bus_identifierContactEmail" xlink:title="p_bus_identifierContactEmail"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_identifierContactEmail" xlink:label="h_bus_identifierContactEmail" xlink:title="h_bus_identifierContactEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_identifierContactEmail" xlink:to="h_bus_identifierContactEmail" xlink:title="all (has-hypercube): p_bus_identifierContactEmail to h_bus_identifierContactEmail" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactEmail" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_identifierContactEmail to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactEmail" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_bus_identifierContactEmail to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactEmail" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_bus_identifierContactEmail to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_detailIdentifierReference" xlink:label="d_cor_detailIdentifierReference" xlink:title="d_cor_detailIdentifierReference"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactEmail" xlink:to="d_cor_detailIdentifierReference" xlink:title="hypercube-dimension: h_bus_identifierContactEmail to d_cor_detailIdentifierReference" order="4"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_identifierContact" xlink:label="d_cor_identifierContact" xlink:title="d_cor_identifierContact"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactEmail" xlink:to="d_cor_identifierContact" xlink:title="hypercube-dimension: h_bus_identifierContactEmail to d_cor_identifierContact" order="5"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_identifierContactEmail" xlink:label="d_bus_identifierContactEmail" xlink:title="d_bus_identifierContactEmail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_identifierContactEmail" xlink:to="d_bus_identifierContactEmail" xlink:title="hypercube-dimension: h_bus_identifierContactEmail to d_bus_identifierContactEmail" order="6"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_identifierContactEmailAddress" xlink:label="bus_identifierContactEmailAddress" xlink:title="bus_identifierContactEmailAddress Email Address"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_identifierContactEmail" xlink:to="bus_identifierContactEmailAddress" xlink:title="domain-member: p_bus_identifierContactEmail to bus_identifierContactEmailAddress Email Address" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_identifierContactEmailAddressUsage" xlink:label="bus_identifierContactEmailAddressUsage" xlink:title="bus_identifierContactEmailAddressUsage Email Address Usage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_identifierContactEmail" xlink:to="bus_identifierContactEmailAddressUsage" xlink:title="domain-member: p_bus_identifierContactEmail to bus_identifierContactEmailAddressUsage Email Address Usage" order="8"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_bus_detailMeasurable">
    <!-- p_bus_detailMeasurable all (has-hypercube) h_bus_detailMeasurable link_bus_detailMeasurable -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_detailMeasurable" xlink:label="p_bus_detailMeasurable" xlink:title="p_bus_detailMeasurable"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_detailMeasurable" xlink:label="h_bus_detailMeasurable" xlink:title="h_bus_detailMeasurable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_detailMeasurable" xlink:to="h_bus_detailMeasurable" xlink:title="all (has-hypercube): p_bus_detailMeasurable to h_bus_detailMeasurable" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailMeasurable" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_detailMeasurable to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailMeasurable" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_bus_detailMeasurable to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailMeasurable" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_bus_detailMeasurable to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_detailMeasurable" xlink:label="d_bus_detailMeasurable" xlink:title="d_bus_detailMeasurable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailMeasurable" xlink:to="d_bus_detailMeasurable" xlink:title="hypercube-dimension: h_bus_detailMeasurable to d_bus_detailMeasurable" order="4"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableCode" xlink:label="bus_measurableCode" xlink:title="bus_measurableCode Measurable Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableCode" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableCode Measurable Code" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableCodeDescription" xlink:label="bus_measurableCodeDescription" xlink:title="bus_measurableCodeDescription Measurable Name"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableCodeDescription" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableCodeDescription Measurable Name" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableClassId" xlink:label="bus_measurableClassId" xlink:title="bus_measurableClassId Measurable Class ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableClassId" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableClassId Measurable Class ID" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableClassDescription" xlink:label="bus_measurableClassDescription" xlink:title="bus_measurableClassDescription Measurable Class Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableClassDescription" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableClassDescription Measurable Class Description" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableCategory" xlink:label="bus_measurableCategory" xlink:title="bus_measurableCategory Measurable Category"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableCategory" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableCategory Measurable Category" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_schemaForMeasurableIdentification" xlink:label="bus_schemaForMeasurableIdentification" xlink:title="bus_schemaForMeasurableIdentification Schema for Measurable Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_schemaForMeasurableIdentification" xlink:title="domain-member: p_bus_detailMeasurable to bus_schemaForMeasurableIdentification Schema for Measurable Code" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_secondaryMeasurableCode" xlink:label="bus_secondaryMeasurableCode" xlink:title="bus_secondaryMeasurableCode Secondary Measurable Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_secondaryMeasurableCode" xlink:title="domain-member: p_bus_detailMeasurable to bus_secondaryMeasurableCode Secondary Measurable Code" order="11"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_schemaForSecondaryMeasurableIdentification" xlink:label="bus_schemaForSecondaryMeasurableIdentification" xlink:title="bus_schemaForSecondaryMeasurableIdentification Schema for Secondary Measurable Code"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_schemaForSecondaryMeasurableIdentification" xlink:title="domain-member: p_bus_detailMeasurable to bus_schemaForSecondaryMeasurableIdentification Schema for Secondary Measurable Code" order="12"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableDescription" xlink:label="bus_measurableDescription" xlink:title="bus_measurableDescription Measurable Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableDescription" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableDescription Measurable Description" order="13"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableQualifier" xlink:label="bus_measurableQualifier" xlink:title="bus_measurableQualifier Measurable Qualifier"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableQualifier" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableQualifier Measurable Qualifier" order="14"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableQuantity" xlink:label="bus_measurableQuantity" xlink:title="bus_measurableQuantity Measurable Quantity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableQuantity" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableQuantity Measurable Quantity" order="15"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableUnitOfMeasure" xlink:label="bus_measurableUnitOfMeasure" xlink:title="bus_measurableUnitOfMeasure Measurable Unit of Measure"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableUnitOfMeasure" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableUnitOfMeasure Measurable Unit of Measure" order="16"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurablePerUnitCostPrice" xlink:label="bus_measurablePerUnitCostPrice" xlink:title="bus_measurablePerUnitCostPrice Measurable Per Unit Cost/Price"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurablePerUnitCostPrice" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurablePerUnitCostPrice Measurable Per Unit Cost/Price" order="17"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableStartTime" xlink:label="bus_measurableStartTime" xlink:title="bus_measurableStartTime Measurable Start Time"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableStartTime" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableStartTime Measurable Start Time" order="18"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableEndTime" xlink:label="bus_measurableEndTime" xlink:title="bus_measurableEndTime Measurable End Time"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableEndTime" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableEndTime Measurable End Time" order="19"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_measurableActive" xlink:label="bus_measurableActive" xlink:title="bus_measurableActive Measurable Active"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailMeasurable" xlink:to="bus_measurableActive" xlink:title="domain-member: p_bus_detailMeasurable to bus_measurableActive Measurable Active" order="20"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="https://www.xbrl.or.jp/taxonomy/xbrl-gl-next/role/link_ehm_detailSerialOrLot">
    <!-- p_ehm_detailSerialOrLot all (has-hypercube) h_ehm_detailSerialOrLot link_ehm_detailSerialOrLot -->
    <link:loc xlink:type="locator" xlink:href="../../ehm/ehm-oim-2026-12-31.xsd#p_ehm_detailSerialOrLot" xlink:label="p_ehm_detailSerialOrLot" xlink:title="p_ehm_detailSerialOrLot"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_ehm_detailSerialOrLot" xlink:label="h_ehm_detailSerialOrLot" xlink:title="h_ehm_detailSerialOrLot"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_ehm_detailSerialOrLot" xlink:to="h_ehm_detailSerialOrLot" xlink:title="all (has-hypercube): p_ehm_detailSerialOrLot to h_ehm_detailSerialOrLot" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_ehm_detailSerialOrLot" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_ehm_detailSerialOrLot to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_ehm_detailSerialOrLot" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_ehm_detailSerialOrLot to d_cor_entryHeader" order="2"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryDetail" xlink:label="d_cor_entryDetail" xlink:title="d_cor_entryDetail"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_ehm_detailSerialOrLot" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_ehm_detailSerialOrLot to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_ehm_detailSerialOrLot" xlink:label="d_ehm_detailSerialOrLot" xlink:title="d_ehm_detailSerialOrLot"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_ehm_detailSerialOrLot" xlink:to="d_ehm_detailSerialOrLot" xlink:title="hypercube-dimension: h_ehm_detailSerialOrLot to d_ehm_detailSerialOrLot" order="4"/>
    <!-- domain-member -->
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotCode" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotCode Serial or Lot Code" order="5"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_nextSerialOrLotNumber" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_nextSerialOrLotNumber Next Serial or Lot Number" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../ehm/ehm-oim-2026-12-31.xsd#ehm_serialOrLotQuantity" xlink:label="ehm_serialOrLotQuantity" xlink:title="ehm_serialOrLotQuantity Serial or Lot Quantity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotQuantity" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotQuantity Serial or Lot Quantity" order="9"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotOriginalQuantity" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotOriginalQuantity Serial or Lot Original Quantity" order="10"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotRemainingQuantity" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotRemainingQuantity Serial or Lot Remaining Quantity" order="11"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotOrigination" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotOrigination Serial or Lot Origination" order="12"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotExpiration" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotExpiration Serial or Lot Expiration" order="13"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotManufacturer" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotManufacturer Serial or Lot Manufacturer" order="14"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotBatchDescription" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotBatchDescription Serial or Lot Batch Description" order="15"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotWarrantyStartDate" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotWarrantyStartDate Serial or Lot Warranty Start Date" order="16"/>
    <link:loc xlink:type="locator" xlink:href="../../ehm/ehm-oim-2026-12-31.xsd#ehm_serialOrLotWarrantyEndDate" xlink:label="ehm_serialOrLotWarrantyEndDate" xlink:title="ehm_serialOrLotWarrantyEndDate Serial or Lot Warranty End Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotWarrantyEndDate" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotWarrantyEndDate Serial or Lot Warranty End Date" order="17"/>
    <link:loc xlink:type="locator" xlink:href="../../ehm/ehm-oim-2026-12-31.xsd#ehm_serialOrLotWarrantyPeriod" xlink:label="ehm_serialOrLotWarrantyPeriod" xlink:title="ehm_serialOrLotWarrantyPeriod Serial or Lot Warranty Period"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotWarrantyPeriod" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotWarrantyPeriod Serial or Lot Warranty Period" order="18"/>
    <link:loc xlink:type="locator" xlink:href="../../ehm/ehm-oim-2026-12-31.xsd#ehm_serialOrLotWarrantPeriodUnit" xlink:label="ehm_serialOrLotWarrantPeriodUnit" xlink:title="ehm_serialOrLotWarrantPeriodUnit Serial or Lot Warrant Period Unit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotWarrantPeriodUnit" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotWarrantPeriodUnit Serial or Lot Warrant Period Unit" order="19"/>
    <link:loc xlink:type="locator" xlink:href="../../ehm/ehm-oim-2026-12-31.xsd#ehm_warrantyVendor" xlink:label="ehm_warrantyVendor" xlink:title="ehm_warrantyVendor Warranty Vendor"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_warrantyVendor" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_warrantyVendor Warranty Vendor" order="20"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_ehm_detailSerialOrLot" xlink:to="ehm_serialOrLotComment" xlink:title="domain-member: p_ehm_detailSerialOrLot to ehm_serialOrLotComment Serial or Lot Comment" order="22"/>
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    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_detailJob" xlink:label="p_bus_detailJob" xlink:title="p_bus_detailJob"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_detailJob" xlink:label="h_bus_detailJob" xlink:title="h_bus_detailJob"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_detailJob" xlink:to="h_bus_detailJob" xlink:title="all (has-hypercube): p_bus_detailJob to h_bus_detailJob" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailJob" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_detailJob to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailJob" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_bus_detailJob to d_cor_entryHeader" order="2"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailJob" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_bus_detailJob to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_detailJob" xlink:label="d_bus_detailJob" xlink:title="d_bus_detailJob"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailJob" xlink:to="d_bus_detailJob" xlink:title="hypercube-dimension: h_bus_detailJob to d_bus_detailJob" order="4"/>
    <!-- domain-member -->
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_jobId" xlink:label="bus_jobId" xlink:title="bus_jobId Job ID"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailJob" xlink:to="bus_jobId" xlink:title="domain-member: p_bus_detailJob to bus_jobId Job ID" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_jobDescription" xlink:label="bus_jobDescription" xlink:title="bus_jobDescription Job Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailJob" xlink:to="bus_jobDescription" xlink:title="domain-member: p_bus_detailJob to bus_jobDescription Job Description" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_jobPhase" xlink:label="bus_jobPhase" xlink:title="bus_jobPhase Job Phase"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailJob" xlink:to="bus_jobPhase" xlink:title="domain-member: p_bus_detailJob to bus_jobPhase Job Phase" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_jobPhaseDescription" xlink:label="bus_jobPhaseDescription" xlink:title="bus_jobPhaseDescription Job Phase Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailJob" xlink:to="bus_jobPhaseDescription" xlink:title="domain-member: p_bus_detailJob to bus_jobPhaseDescription Job Phase Description" order="8"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_jobActive" xlink:label="bus_jobActive" xlink:title="bus_jobActive Job Active"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailJob" xlink:to="bus_jobActive" xlink:title="domain-member: p_bus_detailJob to bus_jobActive Job Active" order="9"/>
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    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#p_bus_detailDepreciationMortgage" xlink:label="p_bus_detailDepreciationMortgage" xlink:title="p_bus_detailDepreciationMortgage"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_bus_detailDepreciationMortgage" xlink:label="h_bus_detailDepreciationMortgage" xlink:title="h_bus_detailDepreciationMortgage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="h_bus_detailDepreciationMortgage" xlink:title="all (has-hypercube): p_bus_detailDepreciationMortgage to h_bus_detailDepreciationMortgage" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <!-- hypercube-dimension -->
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_accountingEntries" xlink:label="d_cor_accountingEntries" xlink:title="d_cor_accountingEntries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailDepreciationMortgage" xlink:to="d_cor_accountingEntries" xlink:title="hypercube-dimension: h_bus_detailDepreciationMortgage to d_cor_accountingEntries" order="1"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_cor_entryHeader" xlink:label="d_cor_entryHeader" xlink:title="d_cor_entryHeader"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailDepreciationMortgage" xlink:to="d_cor_entryHeader" xlink:title="hypercube-dimension: h_bus_detailDepreciationMortgage to d_cor_entryHeader" order="2"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailDepreciationMortgage" xlink:to="d_cor_entryDetail" xlink:title="hypercube-dimension: h_bus_detailDepreciationMortgage to d_cor_entryDetail" order="3"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#d_bus_detailDepreciationMortgage" xlink:label="d_bus_detailDepreciationMortgage" xlink:title="d_bus_detailDepreciationMortgage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="h_bus_detailDepreciationMortgage" xlink:to="d_bus_detailDepreciationMortgage" xlink:title="hypercube-dimension: h_bus_detailDepreciationMortgage to d_bus_detailDepreciationMortgage" order="4"/>
    <!-- domain-member -->
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="bus_depreciationMortgageJurisdiction" xlink:title="domain-member: p_bus_detailDepreciationMortgage to bus_depreciationMortgageJurisdiction Depreciation Mortgage Jurisdiction" order="5"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_depreciationMethod" xlink:label="bus_depreciationMethod" xlink:title="bus_depreciationMethod Depreciation Method"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="bus_depreciationMethod" xlink:title="domain-member: p_bus_detailDepreciationMortgage to bus_depreciationMethod Depreciation Method" order="6"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_depreciationMortgageLife" xlink:label="bus_depreciationMortgageLife" xlink:title="bus_depreciationMortgageLife Depreciation Mortgage Life"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="bus_depreciationMortgageLife" xlink:title="domain-member: p_bus_detailDepreciationMortgage to bus_depreciationMortgageLife Depreciation Mortgage Life" order="7"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_depreciationMortgageDescription" xlink:label="bus_depreciationMortgageDescription" xlink:title="bus_depreciationMortgageDescription Depreciation Mortgage Description"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="bus_depreciationMortgageDescription" xlink:title="domain-member: p_bus_detailDepreciationMortgage to bus_depreciationMortgageDescription Depreciation Mortgage Description" order="8"/>
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    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="bus_depreciationMortgageStartDate" xlink:title="domain-member: p_bus_detailDepreciationMortgage to bus_depreciationMortgageStartDate Depreciation Mortgage Start Date" order="9"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_depreciationMortgageEndDate" xlink:label="bus_depreciationMortgageEndDate" xlink:title="bus_depreciationMortgageEndDate Depreciation Mortgage End Date"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="bus_depreciationMortgageEndDate" xlink:title="domain-member: p_bus_detailDepreciationMortgage to bus_depreciationMortgageEndDate Depreciation Mortgage End Date" order="10"/>
    <link:loc xlink:type="locator" xlink:href="../../bus/bus-oim-2026-12-31.xsd#bus_depreciationMortgageAmount" xlink:label="bus_depreciationMortgageAmount" xlink:title="bus_depreciationMortgageAmount Depreciation Mortgage Amount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="p_bus_detailDepreciationMortgage" xlink:to="bus_depreciationMortgageAmount" xlink:title="domain-member: p_bus_detailDepreciationMortgage to bus_depreciationMortgageAmount Depreciation Mortgage Amount" order="11"/>
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    <!-- p_lnk_detailRichTextComment all (has-hypercube) h_lnk_detailRichTextComment link_lnk_detailRichTextComment -->
    <link:loc xlink:type="locator" xlink:href="../../lnk/lnk-oim-2026-12-31.xsd#p_lnk_detailRichTextComment" xlink:label="p_lnk_detailRichTextComment" xlink:title="p_lnk_detailRichTextComment"/>
    <link:loc xlink:type="locator" xlink:href="cor-all-oim-2026-12-31.xsd#h_lnk_detailRichTextComment" xlink:label="h_lnk_detailRichTextComment" xlink:title="h_lnk_detailRichTextComment"/>
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