Shinra's father and a man with an eccentric personality. His behaviour is odd to the point that he wears a gas mask, claiming: "Tokyo air is very filthy.". He has also a habit of spinning a pen in his right hand.
He has multiple personalities, ranging from childish for comic relief up to somewhat intimidating (especially around Izaya and Namie), he is the one who offered Celty a home, in exchange for performing surgery on her, to which she agreed. As his father, he had Shinra participate in multiple dissections, and he believes that is the reason why Shinra is so twisted now.
It is later revealed that he in fact was the one who stole Celty's head, using the cursed blade Saika to cut the soul that binds together head and body. He sold the sword to an acquaintance and handed Celty's head to Namie's father.