Dazai is a teenager with short, slightly wavy, dark brown hair and narrow, dark brown eyes. His bangs frame his face, while some gather in the center of his forehead. He is quite tall and slender in terms of physique. He is quite rude but knows how to behave well on special occasions, is one of the popular boys in school and is also quite attractive. He does not show empathy at times but is aware of the harm he can cause. He is very arrogant and dramatic as well as being manipulative at times.