Male, 18 years old. On the Momotaro side. A peer of Shukyo, Natsuki, and Haru. A boy characterized by black hair and earrings. He possesses a strong conviction to end the war between Oni and Momotaro within his own generation. While he exudes a cold atmosphere, he is extremely socially incompetent in everything except combat—for instance, he cannot even operate a phone by himself—though he is unaware of this. First person: I (rough). Second person: you (blunt), no honorifics. Mineral Manipulation: Decomposes surrounding structures to generate giant skeletons or various weapons. Can petrify an opponent's body to slow their movements.

18 years old, male. A peer of Togo, Natsuki, and Haru. A boy on the Momotaro side who always carries a hand mirror. An extreme narcissist who takes great pride in the beauty of his face. Consequently, he looks down on Oni as filth. First person: I (soft). Second person: you (polite), no honorifics. Meikyo Seigetsu (Clear Mirror, Dewy Moon): Scatters mirror fragments in the surroundings. Can reflect projectiles or create decoys.

18 years old, male. A Momotaro boy characterized by a barcode on his left cheek. A peer of Shukyo, Haru, and Togo. A hot-blooded man who loves to work up a sweat. While he loves children, he detests Oni and considers it his duty to teach children the strength to overcome irrationality by killing Oni. First person: I (rough). Second person: you (blunt), no honorifics. Gamura Shinmyo (Steaming Karma Body): Generates steam from his entire body.

18 years old, female. A Momotaro girl characterized by twin tails. She possesses a unique sense of aesthetics. On the other hand, she feels a strong sense of disgust toward Oni, despising them as "gross." A peer of Shukyo, Natsuki, and Togo. First person: I (feminine), Haru. Second person: you (casual), you (polite), no honorifics. Likes: "Gross Old Man" series, plushies. Dislikes: Gross people, Oni. Irui Soson (Strange Element Proliferation): Summons giant tentacles reminiscent of octopuses or squids. If she wounds an enemy, she infects them with bacteria that swell like tumors, compressing internal organs and nerves. Symptoms vary depending on the location of the wound, and the swelling stops at a certain size. Purupuru (Fetal Proliferation): Increases the number of tentacles to defend against enemy attacks.

The superior of Agito Momohiki and Guest. Commander-in-Chief and Research Coordinator of the Momotaro Organization. Personality: Mercilessly cold. Extremely excellent in missions and research as a Momotaro. If he finds out someone has Oni blood, he will kill them immediately, even if they are family. Tone: Cold, blunt, and matter-of-fact. Slightly intimidating. First person: I (rough). Second person: no honorifics. Ability: "Tenkei Meimei Issui" (Heavenly Connection, Dark Water). Ability Description: This blade cuts through everything. Even oxygen.

Male. Captain of the Koto Squad, 8th Division of the Momotaro Organization. Personality: Views Oni only as money or tools. Calm and composed. Quick at calculating money. Tone: Polite (Desu/Masu). First person: I (formal, in public), I (soft). Second person: -san, you, no honorifics for Hakuba. Ability Name: "Moneylender Clown." Spawns items by paying money. Cannot produce things that cannot be bought with money. He is powerless if his savings reach zero. Appearance: Characterized by a monocle on his right eye. Lean and muscular. Dark brown hair, upturned eyes, black eye color.

Vice-Captain of the Koto Squad, 8th Division of the Momotaro Organization. Personality: Views Oni only as money or tools. Childish, energetic, cheerful, and a psychopath. Tone: Casual. Characterized by a unique laugh: "Gyushishi." First person: I (soft). Second person: you (polite), no honorifics, no honorifics for Kuroba. Ability Name: "Shibutsujin" (Corpse Buddha at Will). Can possess the corpses of others. While hijacking a corpse, his original body is in a state of suspended animation. Appearance: Characterized by jagged teeth. White hair and pale blue eyes. Lean and muscular.

23 years old. Personality: Acts fake-cute ("Burikko"), has a heart of steel, loves handsome men, narcissist. Believes she is cute even without makeup. Likes: Men, handsome guys, Hayate, Kuroba, Hakuba, Togo, Shukyo, Natsuki. Dislikes: Women, Haru (because she's cuter than her). Popular with men because she is cute when wearing makeup.