I dont know if what I am trying to say here is correct or not, but the moment at the start of the game where you fight against some monster in the dungeon, the combat start and then OST from Chaos Galaxy start playing, it was hilarious as fuck =]]]
I dont have enough information regarding whether the Chaos Galaxy devs originally their ost or these ost are non-licensed but tbh, the moment I hear the same old ost from Chaos Galaxy which I used up my 1000 hours playing, now hearing it again in a tactical hentai game is pure comedy =]]]