Chiyou’s “Spoils of War” myth tech isn’t updated to include the new Japanese buildings, as can be seen by checking the major_gods.xml file in the code for the gods Fuxi and Shennong (There are no unique Japanese buildings). I also confirmed this by playing the game.
<bountyresourceearning>
<active>false</active>
<vfx>VFXCoinBurst</vfx>
<excludedtarget>AbstractWall</excludedtarget>
<bountyreward unittype="AbstractTownCenter" resourcetype="Wood" condition="Destroy">175.0</bountyreward>
<bountyreward unittype="AbstractTownCenter" resourcetype="Gold" condition="Destroy">175.0</bountyreward>
<bountyreward unittype="House" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="Granary" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="Temple" resourcetype="Wood" condition="Destroy">75.0</bountyreward>
<bountyreward unittype="Temple" resourcetype="Gold" condition="Destroy">75.0</bountyreward>
<bountyreward unittype="Dock" resourcetype="Wood" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="AbstractArmory" resourcetype="Wood" condition="Destroy">75.0</bountyreward>
<bountyreward unittype="Market" resourcetype="Wood" condition="Destroy">75.0</bountyreward>
<bountyreward unittype="AbstractFarm" resourcetype="Wood" condition="Destroy">37.5</bountyreward>
<bountyreward unittype="SentryTower" resourcetype="Wood" condition="Destroy">75.0</bountyreward>
<bountyreward unittype="SentryTower" resourcetype="Gold" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="Wonder" resourcetype="Food" condition="Destroy">2500.0</bountyreward>
<bountyreward unittype="Wonder" resourcetype="Wood" condition="Destroy">2500.0</bountyreward>
<bountyreward unittype="Wonder" resourcetype="Gold" condition="Destroy">2500.0</bountyreward>
<bountyreward unittype="Storehouse" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="ArcheryRange" resourcetype="Wood" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="Stable" resourcetype="Wood" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="MilitaryAcademy" resourcetype="Wood" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="Fortress" resourcetype="Wood" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="Fortress" resourcetype="Gold" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="Obelisk" resourcetype="Gold" condition="Destroy">5.0</bountyreward>
<bountyreward unittype="LumberCamp" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="MiningCamp" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="MonumentToVillagers" resourcetype="Food" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="MonumentToVillagers" resourcetype="Gold" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="MonumentToSoldiers" resourcetype="Food" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="MonumentToSoldiers" resourcetype="Gold" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="MonumentToPriests" resourcetype="Food" condition="Destroy">100.0</bountyreward>
<bountyreward unittype="MonumentToPriests" resourcetype="Gold" condition="Destroy">100.0</bountyreward>
<bountyreward unittype="MonumentToPharaohs" resourcetype="Food" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="MonumentToPharaohs" resourcetype="Gold" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="MonumentToGods" resourcetype="Food" condition="Destroy">350.0</bountyreward>
<bountyreward unittype="MonumentToGods" resourcetype="Gold" condition="Destroy">350.0</bountyreward>
<bountyreward unittype="Barracks" resourcetype="Gold" condition="Destroy">37.5</bountyreward>
<bountyreward unittype="SiegeWorks" resourcetype="Gold" condition="Destroy">37.5</bountyreward>
<bountyreward unittype="Lighthouse" resourcetype="Gold" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="MigdolStronghold" resourcetype="Gold" condition="Destroy">250.0</bountyreward>
<bountyreward unittype="OxCart" resourcetype="Food" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="OxCart" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="Longhouse" resourcetype="Wood" condition="Destroy">45.0</bountyreward>
<bountyreward unittype="GreatHall" resourcetype="Wood" condition="Destroy">67.5</bountyreward>
<bountyreward unittype="HillFort" resourcetype="Wood" condition="Destroy">135.0</bountyreward>
<bountyreward unittype="HillFort" resourcetype="Gold" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="AsgardianHillFort" resourcetype="Wood" condition="Destroy">135.0</bountyreward>
<bountyreward unittype="AsgardianHillFort" resourcetype="Gold" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="Manor" resourcetype="Wood" condition="Destroy">40.0</bountyreward>
<bountyreward unittype="Manor" resourcetype="Gold" condition="Destroy">10.0</bountyreward>
<bountyreward unittype="EconomicGuild" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="EconomicGuild" resourcetype="Gold" condition="Destroy">7.5</bountyreward>
<bountyreward unittype="SkyPassage" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="MilitaryBarracks" resourcetype="Wood" condition="Destroy">37.5</bountyreward>
<bountyreward unittype="MilitaryBarracks" resourcetype="Gold" condition="Destroy">17.5</bountyreward>
<bountyreward unittype="CounterBarracks" resourcetype="Wood" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="CounterBarracks" resourcetype="Gold" condition="Destroy">12.5</bountyreward>
<bountyreward unittype="Palace" resourcetype="Wood" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="Palace" resourcetype="Gold" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="MirrorTower" resourcetype="Wood" condition="Destroy">37.5</bountyreward>
<bountyreward unittype="MirrorTower" resourcetype="Gold" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="Silo" resourcetype="Wood" condition="Destroy">25.0</bountyreward>
<bountyreward unittype="MilitaryCamp" resourcetype="Wood" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="MilitaryCampTower" resourcetype="Wood" condition="Destroy">87.5</bountyreward>
<bountyreward unittype="MilitaryCampTower" resourcetype="Gold" condition="Destroy">37.5</bountyreward>
<bountyreward unittype="MilitaryCampTrainingYard" resourcetype="Food" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="MilitaryCampTrainingYard" resourcetype="Wood" condition="Destroy">75.0</bountyreward>
<bountyreward unittype="MachineWorkshop" resourcetype="Wood" condition="Destroy">62.5</bountyreward>
<bountyreward unittype="MachineWorkshop" resourcetype="Gold" condition="Destroy">12.5</bountyreward>
<bountyreward unittype="MachineWorkshopTower" resourcetype="Wood" condition="Destroy">100.0</bountyreward>
<bountyreward unittype="MachineWorkshopTower" resourcetype="Gold" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="MachineWorkshopTrainingYard" resourcetype="Wood" condition="Destroy">112.5</bountyreward>
<bountyreward unittype="MachineWorkshopTrainingYard" resourcetype="Gold" condition="Destroy">37.5</bountyreward>
<bountyreward unittype="ImperialAcademy" resourcetype="Wood" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="ImperialAcademy" resourcetype="Gold" condition="Destroy">50.0</bountyreward>
<bountyreward unittype="Baolei" resourcetype="Wood" condition="Destroy">150.0</bountyreward>
<bountyreward unittype="Baolei" resourcetype="Gold" condition="Destroy">150.0</bountyreward>
</bountyresourceearning>