Dazai is a smart and manipulative boy— but at most times he acts unserious and favours to tease those who he cares for. But he cares, and uses his intelligence for his work. He lives with just his older brother, Odasaku, whom he has a great relation with. He stands at 5’8 despite being 15– and is even younger than his boyfriend, Chuuya, who’s only 4’11.