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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e2d28-c1b4-76b0-945a-0daa6a908c72,g:c219b3c4-5b3b-4e68-b18c-34c3fcacf9ed-->
<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" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.sunflowerbank.com/role/Cover" xlink:type="simple" xlink:href="fcb-20260401.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.sunflowerbank.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e2d28-c1b4-79ff-9be2-66cce2172817" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_DocumentType_019e2d28-c1b4-79ff-9be2-66cce2172817" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e2d28-c1b4-72a3-adc0-d10bcf7fdfc1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_DocumentPeriodEndDate_019e2d28-c1b4-72a3-adc0-d10bcf7fdfc1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e2d28-c1b4-7fe8-b6ed-fb34547f67ca" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityRegistrantName_019e2d28-c1b4-7fe8-b6ed-fb34547f67ca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e2d28-c1b4-7b5c-a299-61190a56647a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e2d28-c1b4-7b5c-a299-61190a56647a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e2d28-c1b4-7e24-babd-e35b1d2661c0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityFileNumber_019e2d28-c1b4-7e24-babd-e35b1d2661c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e2d28-c1b4-7b82-97a8-5b1832934777" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e2d28-c1b4-7b82-97a8-5b1832934777" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e2d28-c1b4-7dd6-a8dd-e081afe6ec5b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityAddressAddressLine1_019e2d28-c1b4-7dd6-a8dd-e081afe6ec5b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019e2d28-c1b4-782d-9622-3b6e6d112827" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityAddressAddressLine2_019e2d28-c1b4-782d-9622-3b6e6d112827" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e2d28-c1b4-7ff9-a537-904d6ea1a778" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityAddressCityOrTown_019e2d28-c1b4-7ff9-a537-904d6ea1a778" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e2d28-c1b4-70b6-8361-cbdfc22da20e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityAddressStateOrProvince_019e2d28-c1b4-70b6-8361-cbdfc22da20e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e2d28-c1b4-71be-a92b-7409be25535b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityAddressPostalZipCode_019e2d28-c1b4-71be-a92b-7409be25535b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e2d28-c1b4-7381-9fe3-cdb1b5fd36fd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_CityAreaCode_019e2d28-c1b4-7381-9fe3-cdb1b5fd36fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e2d28-c1b4-7154-b66b-627572f277e0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_LocalPhoneNumber_019e2d28-c1b4-7154-b66b-627572f277e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019e2d28-c1b4-7ea4-8125-e96ec1b86cd5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_WrittenCommunications_019e2d28-c1b4-7ea4-8125-e96ec1b86cd5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019e2d28-c1b4-7ba4-9883-641b9b686381" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_SolicitingMaterial_019e2d28-c1b4-7ba4-9883-641b9b686381" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019e2d28-c1b4-7838-a573-5b26f04d6004" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_PreCommencementTenderOffer_019e2d28-c1b4-7838-a573-5b26f04d6004" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019e2d28-c1b4-7e3a-adcf-4c74a3e4844c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019e2d28-c1b4-7e3a-adcf-4c74a3e4844c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e2d28-c1b4-791a-8dbf-7ea843277b3b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e2d28-c1b4-791a-8dbf-7ea843277b3b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_019e2d28-c1b4-728d-b92c-aa400385a466" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityExTransitionPeriod"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityExTransitionPeriod_019e2d28-c1b4-728d-b92c-aa400385a466" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e2d28-c1b4-7405-86de-384ba513af72" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_EntityCentralIndexKey_019e2d28-c1b4-7405-86de-384ba513af72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e2d28-c1b4-77da-a094-dc14497082a1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_AmendmentFlag_019e2d28-c1b4-77da-a094-dc14497082a1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentDescription_019e2d28-c1b4-77da-9d7b-63f0b1965105" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentDescription"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_AmendmentDescription_019e2d28-c1b4-77da-9d7b-63f0b1965105" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e2d2e-01ea-770a-9d4e-6e3730d90c51" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_Security12bTitle_019e2d2e-01ea-770a-9d4e-6e3730d90c51" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e2d2e-6a91-70a3-b8ce-52a93781e406" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_TradingSymbol_019e2d2e-6a91-70a3-b8ce-52a93781e406" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e2d2e-a521-7a99-9d26-3c4a54811422" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019e2d28-c1b4-7aec-bf2a-0addb6e46aa8" xlink:to="loc_dei_SecurityExchangeName_019e2d2e-a521-7a99-9d26-3c4a54811422" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
