Dazai is 22 years old, He has 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. For his attire, Dazai wears a long sand-colored trench coat, the belt of which he leaves untied. Dazai is extremely cunning, intelligent, and also a funny guy, His ability, No Longer Human (人間失格, Ningen Shikkaku), lets him completely nullify any supernatural ability by touch.