I think that worked as its now creating the config files and everything, dont see any difference in the game though so I assume its the artwork itself that is censored.Check there are any multi-bytes characters on game path. (ex. "c:\게임\AiKagura\" is NG)
Using in ReiPatcher, remove it first. ReiPatcher can't use BepInEx plugins.
May be you're using mis-matching BepInEx.
If downloaded here, may be x64. and AiKagura is IL2CPP exe type.
SO useYou must be registered to see the links.
If you have a x32 exe file, useYou must be registered to see the links.
extract file to game folder(where "Aikagura.exe" file exists)
Run game once. Takes long-time(?) on first time. doing donwload BepInEx\unhollowed\ and so on.
Then BepInEx\plugins\ folder will be created by BepInEx.
close game. copy DumbRendererDemosaicIl2Cpp.dll to BepInEx\plugins\
run game again. DumbRendererDemosaicIl2Cpp.ini file will be created on BepInEx\plugins\
Then it will works.
If don't, can I view your log file ? (BepInEx\LogOutput.log)
The hidden steps to get it to work was to use the UnityIL2CPP version of the pre-release version that the BepInEx maker is warning people not to use due to bugs and previous plugins not working with it. Would help if that was added to your plugin so people know what version to get.