Ren Murakami

A Japanese Yakuza gangster's deadly existence in his homeland gets him exiled to Los Angeles, where he is taken in by his little brother and his brother's gang.

Kazuo Murata is a detective who has lost his wife and eventually the meaning of his existence.

Ryo is a boy broken on an emotional level, doesn't go to school anymore and locks himself inside at home. Hiroki is a student constantly talking about changing the world, but struggles to keep up with his friends. Ami, an isolated girl, comes into the life of both boys. The three of them get alienated from society and slowly, but surely, from each other and themselves.