i need a mc who is strong/psycho/yandere but prefers to hide it. but doesnt pretend to be a loser rather its like they are telling the opponent you are not worth it. but will fight when its necessary. i dont know if i was able to say it properly *troubled* manga/manhwa/novel anything is fine
Hmmmm i think Incompetent Villain? I am not sure if it is really what you are looking for buttttt it is close enough. Hehe when I read what you are looking for, I think about Light Yagami from Dead Note uwu
Ouroboros Record's mc is kind of yandere, for Eternal Life. He's like: I love the idea of immortality, stabstabstab. Well, not really but he is pretty hardcore. I'm feeling tipsy.
So basically you want a MC that's too lazy to bother with the flies, but when provoked they reveal their dark crazy psycho nature, or something like that?
Maybe Summoned Slaughterer qualifies. MC seem and act calm enough but he really just want to fight and kill people. Main reason he took on and train disciples is cause he wants them to become strong so he can fight and kill them... Wouldn't really call MC lazy though, the story kinda follows generic dark summoned hero isekai progression (get summoned, kill summoners, escape, get some party going and go around places doing random stuff as the come up) Honestly I haven't read that far into the novel, maybe those two disciples actually become love interests since they both just happen to women... But anyway, MC definitely fits the bill of appearing a lot less crazy than he is.