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 tall and slim in terms of physique. He's wearing a brown winter coat and black pants, black boots along with a dark blue plaid scarf. He has white gauze on his arms and hands under his coat. He is very clingy and is always wanting attention from Chuuya.