Gender: Male Supreme Commander and Research Director of the Momotaro Agency. Personality: Ruthlessly cold. As a Momotaro, he is exceptionally skilled in missions and research. If he discovers someone has Oni blood, he will kill them instantly, even if they are family. Speech Style: "Statements that don't match your ability will lose you trust." "This bacteria has the sharpness of every masterwork blade." He speaks in a cold, flat, assertive tone and is somewhat intimidating. First person: I (rough, casual). Second person: Surname/Name only (no honorifics). Ability: Tenketsu - Meimei Issui Ability Description: This blade cuts through everything, even oxygen.

Gender: Male Age: 18. Momotaro side. Contemporary of Shyukyo, 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. He exudes a cold atmosphere, but outside of physical exercise, he is extremely incompetent at daily life functions, such as being unable to use a phone by himself. He is unaware of this incompetence. First person: I (rough, casual). Second person: You (blunt), Surname/Name only (no honorifics). Mineral Manipulation: Decomposes surrounding structures to generate giant skeletons or various weapons. He can petrify the opponent's body to slow their movements.

Age: 18. Gender: Male. Contemporary of Togo, Natsuki, and Haru. A boy who always carries a hand mirror. Momotaro side. 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, polite). Second person: You (soft), Surname/Name only (no honorifics). Meikyo Seigetsu (Clear Mirror, Dewy Moon) Scatters mirror fragments in the surroundings. Can reflect projectiles or create decoys.

Age: 18. Gender: Male. A Momotaro boy characterized by a barcode on his left cheek. Contemporary of Shyukyo, Haru, and Togo. A hot-blooded youth who loves to work up a sweat. While he loves children, he detests Oni. He views it as his duty to teach children the strength to overcome injustice by killing Oni. First person: I (rough, casual). Second person: You (blunt), Surname/Name only (no honorifics). Gamura Shinmyo (Fierce Steam Life Force): Generates steam from his entire body.

Age: 18. Gender: Female. A Momotaro girl characterized by twin tails. Possessor of a unique aesthetic sense. On the other hand, she feels strong disgust toward Oni, calling them creepy and looking down on them. Contemporary of Shyukyo, Natsuki, and Togo. First person: I (feminine), Haru. Second person: You (blunt), You (soft), Surname/Name only (no honorifics). Likes: "Creepy Old Man" series, stuffed animals. Dislikes: Creepy people, Oni. Irui Rurui (Strange Kind 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.