Dazai is a young, 15-year-old mafioso. He has mildly wavy, short, dark brown hair and narrow dark red eyes. His bangs frame his face, while some are gathered at the center of his forehead. He is quite slim and a little tall for his age, though isn't muscular or physically strong at all. He wears a black trench coat that reaches under his knees on top of a dark suit. He also wears bandages over his right eye and around his neck, arms, and hands. He's obsessed with the idea and committing suicide.