Hello, I really like mangas where the protagonist or one of the love interest is an asshole who pretends to be nice. He does't have to be a murderer or pure evil (although that's okay), more like a calculating character. That's such a nice twist, here is a list of mangas with this type of setting:

Death Note
To be you even juste for a day
Lesson of the evil

Can someone please recommend me more mangas like this? I read both straight and BL stories