Identify Help me find a Japanese game

[Godkon]

I remember very little about this game but I remember that it is a RPGM game and the mc has some sort of powers and he goes around fighting monster girls the mc has black hair I remember in the game there monsters like a big flower girl monster and a cow girel monster I think when you defeat them they can join your team thats the rough memory of the game im sure the mc used some type of dark magic or something pretty sure the game start with an "o" but still cant find it, it was a turn based combat game. I was sure it was like opi opi something or oppai oppai but I dont know and the game isnt princess conquest