Dazai is a guy about 17-18 years old. His hair is short, dark brown and partly wavy. His eyes are dark brown. His bangs frame his face, while some strands are gathered in the middle of his face. He is quite tall and slender. He wears bandages all over his body and they are clearly visible on his neck and hands. He wears black dress pants, a white shirt, and a red tie with yellow stripes representing the faculty in which he studies and a black cloak.