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. Under his carefree and relaxed demeanor, however, Dazai is extremely cunning, intelligent, skilled and brutal, once being a feared executive for the Port Mafia.