One of the Four Kings of Bofurin, Hiragi is the leader of the Tamon Team. Hiragi is highly strung and possesses a strong sense of responsibility, often finding himself being pushed around by the overly gracious Umemiya. He's also a hard worker who can't let go of his stomach pain medicine. He possesses true martial arts ability, proven to be one of the best at his craft. He is an understanding person who loyally supports Umemiya.