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        <link:roleType roleURI="http://ofa.hk/role/ShareholdersEquityAndMezzanineEquityDetailsNarrative" id="ShareholdersEquityAndMezzanineEquityDetailsNarrative">
          <link:definition>999057 - Disclosure - SHAREHOLDERS&#8217; EQUITY AND MEZZANINE EQUITY (Details Narrative)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
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        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfDeferredTaxAssetDetails" id="ScheduleOfDeferredTaxAssetDetails">
          <link:definition>999058 - Disclosure - SCHEDULE OF DEFERRED TAX ASSET (Details)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfReconciliationHongKongStatutoryRateAndEffectiveTaxRateDetails" id="ScheduleOfReconciliationHongKongStatutoryRateAndEffectiveTaxRateDetails">
          <link:definition>999059 - Disclosure - SCHEDULE OF RECONCILIATION HONG KONG STATUTORY RATE AND EFFECTIVE TAX RATE (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
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        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/IncomeTaxesDetailsNarrative" id="IncomeTaxesDetailsNarrative">
          <link:definition>999060 - Disclosure - INCOME TAXES (Details Narrative)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfFairValueAssumptionsDetails" id="ScheduleOfFairValueAssumptionsDetails">
          <link:definition>999061 - Disclosure - SCHEDULE OF FAIR VALUE ASSUMPTIONS (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/Share-basedCompensationDetailsNarrative" id="Share-basedCompensationDetailsNarrative">
          <link:definition>999062 - Disclosure - SHARE-BASED COMPENSATION (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfSegmentInformationDetails" id="ScheduleOfSegmentInformationDetails">
          <link:definition>999063 - Disclosure - SCHEDULE OF SEGMENT INFORMATION (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/SegmentInformationDetailsNarrative" id="SegmentInformationDetailsNarrative">
          <link:definition>999064 - Disclosure - SEGMENT INFORMATION (Details Narrative)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/SubsequentEventsDetailsNarrative" id="SubsequentEventsDetailsNarrative">
          <link:definition>999065 - Disclosure - SUBSEQUENT EVENTS (Details Narrative)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfPropertyAndEquipmentNetDetails" id="ScheduleOfPropertyAndEquipmentNetDetails">
          <link:definition>999066 - Disclosure - SCHEDULE OF PROPERTY AND EQUIPMENT, NET (Details)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/PropertyAndEquipmentDetailsNarrative" id="PropertyAndEquipmentDetailsNarrative">
          <link:definition>999067 - Disclosure - PROPERTY AND EQUIPMENT (Details Narrative)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfIntangibleAssetsDetails" id="ScheduleOfIntangibleAssetsDetails">
          <link:definition>999068 - Disclosure - SCHEDULE OF INTANGIBLE ASSETS (Details)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfFutureAmortizationOfIntangibleAssetsDetails" id="ScheduleOfFutureAmortizationOfIntangibleAssetsDetails">
          <link:definition>999069 - Disclosure - SCHEDULE OF FUTURE AMORTIZATION OF INTANGIBLE ASSETS (Details)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/IntangibleAssetsDetailsNarrative" id="IntangibleAssetsDetailsNarrative">
          <link:definition>999070 - Disclosure - INTANGIBLE ASSETS (Details Narrative)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://ofa.hk/role/ScheduleOfBasicAndDilutedLossPerShareDetails" id="ScheduleOfBasicAndDilutedLossPerShareDetails">
          <link:definition>999071 - Disclosure - SCHEDULE OF BASIC AND DILUTED LOSS PER SHARE (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:linkbaseRef xlink:type="simple" xlink:href="ofal-20251231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="ofal-20251231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="ofal-20251231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links" />
        <link:linkbaseRef xlink:type="simple" xlink:href="ofal-20251231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links" />
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    <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
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    <element id="OFAL_NatureOfBusinessAndOrganizationAbstract" name="NatureOfBusinessAndOrganizationAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_NatureOfBusinessAndOrganizationTable" name="NatureOfBusinessAndOrganizationTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="OFAL_ScheduleOfConsolidatedFinancialStatementsOfEntityAbstract" name="ScheduleOfConsolidatedFinancialStatementsOfEntityAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_ScheduleOfConsolidatedFinancialStatementsOfEntityTable" name="ScheduleOfConsolidatedFinancialStatementsOfEntityTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="OFAL_PlaceOfIncorporation" name="PlaceOfIncorporation" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_AllowanceForDoubtfulAccountsReceivableAddition" name="AllowanceForDoubtfulAccountsReceivableAddition" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_AllowanceForDoubtfulAccountsReceivableExchangeDifference" name="AllowanceForDoubtfulAccountsReceivableExchangeDifference" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_ContractWithCustomerAssetRevenueRecognizedToDate" name="ContractWithCustomerAssetRevenueRecognizedToDate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_ContractWithCustomerAssetProgressBillingsToDate" name="ContractWithCustomerAssetProgressBillingsToDate" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_ContractWithCustomerAssetExchangeDifference" name="ContractWithCustomerAssetExchangeDifference" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_ContractWithCustomerLiabilityincreaseAsResultOfBillingsInAdvanceOfPerformanceObligationUnderContracts" name="ContractWithCustomerLiabilityincreaseAsResultOfBillingsInAdvanceOfPerformanceObligationUnderContracts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_ContractWithCustomerLiabilityExchangeDifference" name="ContractWithCustomerLiabilityExchangeDifference" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_LongTermDebtMaturitiesRepaymentsOfPrincipalInAfterYearTwo" name="LongTermDebtMaturitiesRepaymentsOfPrincipalInAfterYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_CommonStockSharesAuthorizedValue" name="CommonStockSharesAuthorizedValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_DividendRateOnPreferredStock" name="DividendRateOnPreferredStock" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_DividendDefaultRate" name="DividendDefaultRate" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForLackOfMarketability" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForLackOfMarketability" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_EmploymentAgreementTerms" name="EmploymentAgreementTerms" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="OFAL_AssetAcquisitionConsiderationTransferredDescription" name="AssetAcquisitionConsiderationTransferredDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
</schema>
