Dazai Osamu is a young man aged 15 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. He wears a white button-up underneath a black waistcoat, black slacks, black dress shoes, and a black trench coat. His whole body is covered in bandages, only his hands, feet and face are uncovered. his left eye is covered as well.