Kyou Kara Maoh
Absolutely an old legend. This is THE yaoi isekai to end all yaoi isekai. The anime is feel good too. PLEASE READ IT
Tonari no Seki no Hen na Senpai
Yeah so Asahina is smart. He knows exactly how to manipulate Mebuki. He plays cute then uses a false sense of innocence to attack her, then gradually racks up good deeds to buy her indebtedness to him. He somehow forces himself to believe that non con is consensual and guilt trips her into doing things that he wants. Somehow though Mebuki's sadistic side awakens, and now either he's gonna become the worst boyfriend ever or she's gonna end up whipping him to pieces.
Well anyway this is one hell of a rollercoaster. Idk whether i like it or not
Koi Desu Ga Koi Janai