<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f3cea-ca97-7adb-8963-9e9b2aaa1463,g:10d178d4-9ac7-4676-aee7-392558c15403-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <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"/>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#SeriesOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_S000106841Member_019f3cea-ca97-7f90-8d5c-627d3e83b7f9" xlink:href="ck0001959372-20260724.xsd#ck0001959372_S000106841Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0001959372_S000106841Member_019f3cea-ca97-7f90-8d5c-627d3e83b7f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_S000106843Member_019f3cea-ca97-7f89-b65d-d76ee89f8ddd" xlink:href="ck0001959372-20260724.xsd#ck0001959372_S000106843Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0001959372_S000106843Member_019f3cea-ca97-7f89-b65d-d76ee89f8ddd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_S000106842Member_019f3cea-ca97-7b5d-9040-93291c1db9ce" xlink:href="ck0001959372-20260724.xsd#ck0001959372_S000106842Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0001959372_S000106842Member_019f3cea-ca97-7b5d-9040-93291c1db9ce" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#ClassOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_C000277727Member_019f3cea-ca97-72a1-8c0c-9b912b33efd2" xlink:href="ck0001959372-20260724.xsd#ck0001959372_C000277727Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001959372_C000277727Member_019f3cea-ca97-72a1-8c0c-9b912b33efd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_C000277729Member_019f3cea-ca97-77b0-8a62-669736520360" xlink:href="ck0001959372-20260724.xsd#ck0001959372_C000277729Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001959372_C000277729Member_019f3cea-ca97-77b0-8a62-669736520360" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_C000277728Member_019f3cea-ca97-7732-acfb-258390d52b89" xlink:href="ck0001959372-20260724.xsd#ck0001959372_C000277728Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001959372_C000277728Member_019f3cea-ca97-7732-acfb-258390d52b89" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#RiskOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_AllRisksMember" xlink:href="https://xbrl.sec.gov/oef/2026/oef-2026.xsd#oef_AllRisksMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksMember_019f3cea-ca97-719d-a46f-b70d57c512f0" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksMember_019f3cea-ca97-719d-a46f-b70d57c512f0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksAuthorizedParticipantsAPsConcentrationRiskMember_019f3cea-ca97-7772-9099-5f738578c580" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksAuthorizedParticipantsAPsConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksAuthorizedParticipantsAPsConcentrationRiskMember_019f3cea-ca97-7772-9099-5f738578c580" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksSecondaryMarketTradingRiskMember_019f3cea-ca97-74a5-85cc-aa6841be2936" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksSecondaryMarketTradingRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksSecondaryMarketTradingRiskMember_019f3cea-ca97-74a5-85cc-aa6841be2936" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksAbsenceOfActiveMarketRiskMember_019f3cea-ca97-7e1a-b9c5-de814c90f5c8" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksAbsenceOfActiveMarketRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksAbsenceOfActiveMarketRiskMember_019f3cea-ca97-7e1a-b9c5-de814c90f5c8" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksEarlyCloseTradingHaltDelistingRiskMember_019f3cea-ca97-7660-a85a-4fc05f6fc2f4" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksEarlyCloseTradingHaltDelistingRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksEarlyCloseTradingHaltDelistingRiskMember_019f3cea-ca97-7660-a85a-4fc05f6fc2f4" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksTradingInFundSharesIsSubjectToExpensesRiskMember_019f3cea-ca97-772f-b061-6fcb1eb8ad26" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksTradingInFundSharesIsSubjectToExpensesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksTradingInFundSharesIsSubjectToExpensesRiskMember_019f3cea-ca97-772f-b061-6fcb1eb8ad26" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksFundSharesMayBeSoldShortRiskMember_019f3cf6-29a5-76cd-92d1-5af8f13136cc" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksFundSharesMayBeSoldShortRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksFundSharesMayBeSoldShortRiskMember_019f3cf6-29a5-76cd-92d1-5af8f13136cc" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ETFRisksFundSharesMayTradeAtPricesOtherThanNAVRiskMember_019f3cf6-4798-78a6-b93b-1beadbf16dde" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ETFRisksFundSharesMayTradeAtPricesOtherThanNAVRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ETFRisksFundSharesMayTradeAtPricesOtherThanNAVRiskMember_019f3cf6-4798-78a6-b93b-1beadbf16dde" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_MarketRiskMember_019f3cf6-5f24-7b5e-93e5-75e61671dcf0" xlink:href="ck0001959372-20260724.xsd#ck0001959372_MarketRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_MarketRiskMember_019f3cf6-5f24-7b5e-93e5-75e61671dcf0" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_DebtInstrumentsRiskMember_019f3cf6-966f-7c95-87fd-4d5595b128ac" xlink:href="ck0001959372-20260724.xsd#ck0001959372_DebtInstrumentsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_DebtInstrumentsRiskMember_019f3cf6-966f-7c95-87fd-4d5595b128ac" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_CreditRisk1Member_019f3cea-ca97-72e7-aa87-e1f525b634bb" xlink:href="ck0001959372-20260724.xsd#ck0001959372_CreditRisk1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_CreditRisk1Member_019f3cea-ca97-72e7-aa87-e1f525b634bb" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_HighYieldHighRiskOrJunkSecuritiesRiskMember_019f3cea-ca97-7558-8aff-4e3ea2a6d34b" xlink:href="ck0001959372-20260724.xsd#ck0001959372_HighYieldHighRiskOrJunkSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_HighYieldHighRiskOrJunkSecuritiesRiskMember_019f3cea-ca97-7558-8aff-4e3ea2a6d34b" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_InterestRateRisk1Member_019f3cea-ca97-7fd9-b686-08d19c91597d" xlink:href="ck0001959372-20260724.xsd#ck0001959372_InterestRateRisk1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_InterestRateRisk1Member_019f3cea-ca97-7fd9-b686-08d19c91597d" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_SectorFocusRiskMember_019f3cea-ca97-7c9d-bee0-d604247b030a" xlink:href="ck0001959372-20260724.xsd#ck0001959372_SectorFocusRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_SectorFocusRiskMember_019f3cea-ca97-7c9d-bee0-d604247b030a" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ActiveManagementRiskMember_019f3cea-ca97-7bc2-a197-19a0a26dd30d" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ActiveManagementRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ActiveManagementRiskMember_019f3cea-ca97-7bc2-a197-19a0a26dd30d" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_FloatingRateLoanRiskMember_019f3cea-ca97-76bb-a860-8ca82e0d20b0" xlink:href="ck0001959372-20260724.xsd#ck0001959372_FloatingRateLoanRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_FloatingRateLoanRiskMember_019f3cea-ca97-76bb-a860-8ca82e0d20b0" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ForeignInvestmentRiskMember_019f3cea-ca97-7c54-860d-56f1f6cf9ac7" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ForeignInvestmentRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ForeignInvestmentRiskMember_019f3cea-ca97-7c54-860d-56f1f6cf9ac7" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_FinancialSectorRiskMember_019f3cf8-50ea-7f18-b4a7-e5988c51e822" xlink:href="ck0001959372-20260724.xsd#ck0001959372_FinancialSectorRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_FinancialSectorRiskMember_019f3cf8-50ea-7f18-b4a7-e5988c51e822" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_LiquidityRiskMember_019f3cea-ca97-77c6-8189-55a9e62e44df" xlink:href="ck0001959372-20260724.xsd#ck0001959372_LiquidityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_LiquidityRiskMember_019f3cea-ca97-77c6-8189-55a9e62e44df" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_MortgageRelatedAndOtherAssetBackedSecuritiesRiskMember_019f3cea-ca97-73af-9949-25cc4465491e" xlink:href="ck0001959372-20260724.xsd#ck0001959372_MortgageRelatedAndOtherAssetBackedSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_MortgageRelatedAndOtherAssetBackedSecuritiesRiskMember_019f3cea-ca97-73af-9949-25cc4465491e" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_U.S.GovernmentSecuritiesRiskMember_019f3cea-ca97-7b27-85f5-4322ebaa0e60" xlink:href="ck0001959372-20260724.xsd#ck0001959372_U.S.GovernmentSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_U.S.GovernmentSecuritiesRiskMember_019f3cea-ca97-7b27-85f5-4322ebaa0e60" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_UnderlyingFundRiskMember_019f3cf8-af96-7eef-8905-1a6eb4e009a3" xlink:href="ck0001959372-20260724.xsd#ck0001959372_UnderlyingFundRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_UnderlyingFundRiskMember_019f3cf8-af96-7eef-8905-1a6eb4e009a3" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_SecuritiesLendingRiskMember_019f3cf8-c5d1-7778-9e52-a8fe1bdf5383" xlink:href="ck0001959372-20260724.xsd#ck0001959372_SecuritiesLendingRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_SecuritiesLendingRiskMember_019f3cf8-c5d1-7778-9e52-a8fe1bdf5383" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_LimitedOperatingHistoryRiskMember_019f3cf8-dcc6-74fb-863b-78a9096fee3e" xlink:href="ck0001959372-20260724.xsd#ck0001959372_LimitedOperatingHistoryRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_LimitedOperatingHistoryRiskMember_019f3cf8-dcc6-74fb-863b-78a9096fee3e" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_LargeTransactionsRiskMember_019f3cf8-f102-763e-9da4-e450a0651c00" xlink:href="ck0001959372-20260724.xsd#ck0001959372_LargeTransactionsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_LargeTransactionsRiskMember_019f3cf8-f102-763e-9da4-e450a0651c00" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ValuationRiskMember_019f3cf9-064c-7727-8200-d934034def55" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ValuationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ValuationRiskMember_019f3cf9-064c-7727-8200-d934034def55" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_PrivatePlacementRiskMember_019f3cea-ca97-7426-b449-9c9c8a23bf59" xlink:href="ck0001959372-20260724.xsd#ck0001959372_PrivatePlacementRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_PrivatePlacementRiskMember_019f3cea-ca97-7426-b449-9c9c8a23bf59" xlink:type="arc" order="35"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_ConvertibleSecuritiesRiskMember_019f3cea-ca97-7905-bc06-9e8664ff9081" xlink:href="ck0001959372-20260724.xsd#ck0001959372_ConvertibleSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_ConvertibleSecuritiesRiskMember_019f3cea-ca97-7905-bc06-9e8664ff9081" xlink:type="arc" order="36"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_CurrencyRiskMember_019f3cea-ca97-7298-8e7d-d998da6e387c" xlink:href="ck0001959372-20260724.xsd#ck0001959372_CurrencyRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_CurrencyRiskMember_019f3cea-ca97-7298-8e7d-d998da6e387c" xlink:type="arc" order="37"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001959372_EquitySecuritiesRiskMember_019f3cf9-6db6-7076-84cd-197d0bb25919" xlink:href="ck0001959372-20260724.xsd#ck0001959372_EquitySecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001959372_EquitySecuritiesRiskMember_019f3cf9-6db6-7076-84cd-197d0bb25919" xlink:type="arc" order="38"/>
  </link:definitionLink>
</link:linkbase>
