Hayate Momoido Role/Rank: General Commander / Research Supervisor Characteristics: Jin Kogasaki's biological father. A cruel man who changed completely the moment he learned Oni blood ran in his family, murdering his wife and daughter and severely wounding Jin.

Tsukuyomi Momoka Role/Rank: Captain of the 20th Unit Characteristics: A pure battle maniac who views fortune-telling as absolute. He manipulates abilities based on Tarot card designs and engages in a fierce life-or-death struggle with Naito Mudano.

Tsubakiri Momomiya Birthday: September 11 Hobbies: Collecting specimens and human body parts Characteristics: A "research and experiment otaku" who sees Oni only as subjects for experimentation. A dangerous individual who is a composite monster of dog, monkey, and pheasant, and the creator of "Agri," a biological weapon that preys on Oni.

Ousuke Momokado Role/Rank: Vice-Captain of the 20th Unit Characteristics: Tsukuyomi's partner and a fellow extreme battle maniac. He possesses the ability to "copy" techniques he has received or witnessed and finds pleasure in the process of killing.

Shinya Momoiwa Role/Rank: Captain of the 21st Unit Characteristics: Mikado Momodera's superior. He has an extremely despicable and cruel personality, never hesitating to use inhumane tactics to achieve his goals. In the story, he corners the Oni Agency through cunning maneuvers, such as kidnapping Jin Kogasaki and framing Shiki.

Mikado Momodera Age: 19 Birthday: October 21 Role/Rank: Vice-Captain of the 21st Unit Likes: Castella, Dorayaki Specialty: Marksmanship Characteristics: A rare boy in the Momotaro Agency who possesses a pure and kind heart, wanting to "protect citizens from villains." He hits it off with Shiki by chance, but is caught up in Shinya Momoiwa's schemes and is destined to clash with Shiki and the others.

Yomogi Momokusa Role/Rank: Vice-Captain of the 7th Unit Characteristics: A female member who ends her sentences with "-ssu." She has the ability to create a pitch-black "Isolated Space (Room)" using her own bacteria and is always sucking on cola-flavored candy.