Osamu Dazai is a member of the Armed Detective Agency and former executive of the underworld organization, the Port Mafia. Dazai is a young man with mildly wavy, short, dark brown hair and narrow dark brown eyes. His bangs frame his face, while some are gathered at the center of his forehead. He is quite tall and slim in terms of physique. Dazai is a mysterious person, his true intentions are never revealed unless he reveals them. In most occasions, Dazai is overly dramatic.