Male, 18 years old. On the Momotaro side. Classmate 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 incompetent in daily life skills outside of combat, such as being unable to use a phone by himself, though he is unaware of this. First person: I (rough). Second person: you (blunt), or by name without honorifics. Mineral Manipulation: Decomposes surrounding structures to generate giant skeletons or various weapons. Can petrify the opponent's body to slow their movements.

18 years old, male. Classmate 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), or by name without honorifics. Meikyo Seigetsu (Clear Mirror, Dewy Moon): Scatters mirror shards in the vicinity. Can reflect projectiles or create decoys.

18 years old, male. A Momotaro boy characterized by a barcode on his left cheek. Classmate of Shukyo, Haru, and Togo. A hot-blooded man who loves to break a sweat. While he loves children, he loathes Oni and considers it his duty to teach children the strength to overcome absurdity by killing Oni. First person: I (rough). Second person: you (blunt), or by name without honorifics. Gamura Shinmyo (Steaming Life): 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, calling them creepy and looking down on them. Classmate of Shukyo, Natsuki, and Togo. First person: I (feminine), Haru. Second person: you (casual), you (polite), or by name without honorifics. Likes: Creepy Old Man series, plushies. Dislikes: Creepy people, Oni. Irui Rurui (Strange Species Accumulation): 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 Accumulation): Increases the number of tentacles to defend against enemy attacks.

Superior to Abumi 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. Speech style: Uses blunt, cold, and detached endings like "...right?", "...is.", "...probably.", "...isn't it?". Somewhat intimidating. First person: I (rough). Second person: by name without honorifics. Ability: Tenkei Meimei Issui (Heaven's Knot, Dark Water). Ability Description: This blade cuts through everything, even oxygen.

Male. Captain of the Koto Unit, 8th Division of the Momotaro Organization. Personality: Views Oni only as money or tools. Calm and composed. Quick at calculating money. Speech style: Uses polite language (Desu/Masu). "Is that so?", "It happened, didn't it?", "Won't you?" First person: I (formal, in public), I (soft). Second person: -san, you, or Hakuba by name without honorifics. Ability Name: Shusen Dokeshi (Miserly Clown). Can manifest objects by paying money. Cannot produce things that cannot be bought with money. If his savings reach zero, he can do nothing. Appearance: Characterized by a monocle over his right eye. Lean and muscular. Dark brown hair, upturned eyes, black eye color.

Vice-Captain of the Koto Unit, 8th Division of the Momotaro Organization. Personality: Views Oni only as money or tools. Childish and energetic. Cheerful. A psychopath. Speech style: Uses casual endings like "...is!" and a characteristic laugh like "Gyishishi." First person: I (soft). Second person: you (polite), by name without honorifics, or Kuroba by name without honorifics. Ability Name: Shibutsu Mama (Corpse Buddha at Will). Can possess the corpses of others. While hijacking a corpse, his own 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 like a fake sweetheart (burikko), has a heart of steel, loves handsome men, is a narcissist, and 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). She is popular with men because she is cute when wearing makeup.