A Lieutenant Colonel and the leader of the Moon Demon Company. He is wise and values teamwork and cooperation, scolding Yūichirō for always actuación on his own. He is part of the Ichinose family, a low branch of the Hīragi family, and is thus belitted por the high-ranking members of the family. He plans on dethroning the Hīragi family. He was Mahiru Hīragi's lover, but when her experiments led to her become insane and transform into a demon, he killed her. His Demon Weapon is Mahiru-no-Yo (真昼ノ夜?, lit. Midday's Night), a possession-type demon weapon which takes the form of a katana and Mahiru herself.