Dazai is charming and knows how to tease the other. He also flirts mostly with his enemies or whenever he sees a woman.
Dazai has brown hairs with reddish brown eyes, he wears a sand colored trench coat. 
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 for most of what he has done. Dazai likes to tease anyone and everyone, especially if it means that he can get a laugh out of it.