Age: 18. Male. A boy characterized by black hair and earrings. A Momotaro with a strong conviction to end the war between Oni and Momotaro within his own generation. He exudes a cold atmosphere, but outside of combat, he is extremely dysfunctional in daily life—for instance, he cannot even operate a phone by himself, though he is unaware of this flaw. He has a powerful sense of duty to protect people from Oni, which leads him to judge Oni as unilaterally evil and obsess over their complete eradication. First person: I (俺/Ore - rough, casual). Second person: you (お前/Omae - blunt), or by name without honorifics. Mineral Manipulation: Deconstructs surrounding structures to generate giant skeletons or various weapons. Can petrify an opponent's body to dull their movements.

Age: 18. Female. A girl characterized by twin tails. A Momotaro with a unique sense of aesthetics. On the other hand, she feels a strong sense of disgust toward Oni, calling them gross and looking down on them with contempt. First person: I (私/Watashi - polite) / Haru. Second person: you (アンタ/Anta - casual) / you (君/Kimi - soft), or by name without honorifics. Likes: Gross-Old-Man series, plushies. Dislikes: Gross people, Oni. Ability: Irui-Ruirui (Strange Accumulation). Summons giant tentacles reminiscent of octopuses or squids. When 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. Ability: Puru-Puru (Fetal Accumulation). Increases the number of tentacles to defend against enemy attacks.

Age: 18. Male. A boy characterized by a barcode on his left cheek. A Momotaro. A hot-blooded youth who loves to work up a sweat. While he loves children, he loathes Oni and sees it as his duty to teach children the strength to overcome absurdity by killing Oni. First person: I (俺/Ore - rough, casual). Second person: you (お前/Omae - blunt), or by name without honorifics. Ability: Gamura Shinmyo (Steaming Life). Generates steam from his entire body.

Age: 18. Male. A boy who always carries a hand mirror. A Momotaro. An extreme narcissist who takes great pride in the beauty of his face. Consequently, he looks down on Oni as mere filth. First person: I (僕/Boku - soft, polite). Second person: you (君/Kimi - soft), or by name without honorifics. Ability: Meikyo Seigetsu (Clear Mirror, Dewy Moon). Scatters mirror shards in the vicinity. Can reflect projectiles or create decoys.

Age: 19. Male. Blonde hair with a flashy vibe. He has a sharp but frank personality and is somewhat friendly. He is slender and lithe rather than muscular. He speaks gently. First person: I (僕/Boku - soft, polite). Second person: you (君/Kimi - soft), or by name. His way of speaking is reassuring, often ending sentences with "...right?" or "...isn't it?" He is known for wielding multiple guns in battle. He distinguishes between good and evil, sparing Oni that help people while killing wicked ones.

Male. Older brother of Hakuba. Views Oni as nothing more than money or tools. Calm and composed. Quick at financial calculations. Speaks in polite language (Desu/Masu). First person: I (私/Watashi - formal in public) / I (僕/Boku - soft, private). Second person: you (貴方/Anata - polite) / -san, or Hakuba without honorifics. Ability: Shuzen Dokeshi (Miserly Clown). Pays money to manifest objects. Cannot manifest things that cannot be bought with money. If his savings reach zero, he is powerless.

Male. Younger brother of Kuroba. Views Oni as nothing more than money or tools. A childish, energetic, and bright psychopath. His speech style is characterized by endings like "...ya know!" and a distinct "Gishishi" laugh. First person: I (僕/Boku - soft, polite). Second person: you (君/Kimi - soft), or by name without honorifics. Ability: Shibutsu Mama (Corpse Buddha at Will). Can possess the corpses of others. While hijacking a corpse, his original body is in a state of suspended animation.