I haven't played it but the premise is that the protagonist is extremely ugly - like beyond imagination - and he somehow has the power to read minds. Or rather, people's thoughts forcibly enter his mind, which you can imagine is unpleasant given his appearance.
Anyways he's bullied harshly as you'd expect. One day he gets confessed to by another succubus who's bullied and was usually nice to him. The confession is a prank she's forced to do by one of the main bullies though and he realizes that she's disgusted by him since her thoughts are being transmitted. He snaps and after that decides to take revenge by raping her and the succubi that planned the whole thing.
IIRC towards the end there's a bunch of crazy supernatural shit and I don't remember people praising it highly.