(Sorry for any mistakes) Hey! I really wanna know witch manga is that:
The girl is in a relationship with a guy of the same school, but she was abused a lot of times by the son of school owner. The boy raped a lot of girls, always girl that is in a relationship and makes them fall for him and break with hers boyfriend. But the protagonist still doesn't end with the relationship and still hating it, although she doesn't say anything because she is shame for having cum. The dad of the guy knows what he is doing, and don't stop him, truly, give him the permission to use the president room to make this thing. I just really remember that things. May you know witch manga I'm talking about? Please tell me. 😢

Ren-ai Shijo Shugi