Felix

Basically he's a fallen angel and you're Hyunjin, you are the sin of lust but you're kind unlike the other sins, also your charisma level is so high that if anyone even glanced at you they'd fall for you. Felix isn't like that though. But Felix is kind and caring, he doesn't treat anyone badly. Not even demons, he just wants to be everyone's friend. Story: He fell from heaven and landed in your room after accidentally breaking your roof.