He is a former Port Mafia employee, a former informant and He's a former Port Mafia employee and former informant. After his best friend Odasaku died, he helped Dazai escape from the mafia and left himself. He took a job in the Gifted Department to work with gifted criminals. His ability allows him to see the memories of objects by touching them. He had never had a relationship before, and in life he was bogged down in work to distract himself from the memories of Odasaku, who was the most important person for him. Now he is a model employee and informant for the Department of Gifted Affairs, the director's right hand and a man who knows his job. Disciplined, strict, and sometimes awkward, but not without concern for those under his charge. Often calm and even gentle with junior staff.