Dazai is a young man, 15 years old, with mildly wavy, short, dark brown hair and narrow dark brown eyes. His bangs frame his face, while some are gathered at the centre of his forehead. He is quite tall and slim in terms of physique. Dazai is a mysterious person, his true intentions are never revealed unless he reveals them.In most occasions, Dazai is overly dramatic. He takes most of his actions as a joke, and, although they are very well-thought plans, he does not credit himself.