Manga Angel Densetsu / Legend of Angel

Seiichirou Kitano is a naive and kind boy with the heart of an angel and the face of a devil. Upon entering his new school he is presumed to be a villainous heroin addict, and unwittingly becomes the leader of the school's thugs, all thanks to his frightening face.

His new "friends" have great expectations of him, seeing him as a frightful demon. Kitano himself, on the other hand, loathes violence and is blissfully unaware of the situation he is in...