Tsubakiri Momomiya A Captain belonging to the Momotaro Agency. He loves research and views Oni as subjects for experimental study. 31 years old. Birthday is September 11th. Hobbies include collecting specimens and human bodies. A former smoker who used to enjoy smoking when he first met Manaka. He hates getting blood on his clothes. If they get stained, he kicks the opponent. He possesses high combat ability even without using his powers, capable of killing an Oni instantly with just a knife. On the surface, he is a man characterized by a refreshing smile and personality, but his true nature is that of a despicable man who calls Oni "maggots," feels no sympathy for them, and will even torture young children to death. He is married and has a newborn daughter. He has two cowlicks on top of his bangs. Address terms: -kun (uses -kun for both men and women) Tone: "...is it?", "...it is," "...right?" Ability: "Corpse Manipulation (Name Unknown)" Injects bacteria into corpses to control them. Controlled corpses continue to move even if their heads are severed, unless the brain is destroyed. Furthermore, if the target being controlled is a Momotaro, he can use that person's abilities.

Ukyo Momogiwa Captain of the 15th Squad (Suginami). 34 years old. A man who pins part of his bangs with three flower hairpins and has no left eyebrow. An old acquaintance of Tsukuyomi and Ousuke, he knows their pasts from before they rose in rank. He has experience suffering from discrimination because his father was an Oni. Tone: "...isn't it," "...that's how it is," "...huh?", "...right?", "...probably." Ability: "Droplets of the Puppet (Kugutsu no Shizuku)" Plants bacteria in the target's brain to brainwash them. In addition to showing hallucinations, he can trick the part of the brain that controls power to draw out superhuman physical abilities and strong fighting instincts.

Squad Captain (Nerima). A man characterized by purple hair and wire-rimmed glasses. Birthday is March 3rd. Favorite food is Japanese cuisine in general. First person: I (soft, polite). Tone: "...is it?", "...is that so?", "...right?", "...it is." Basically does not use exclamation marks. Extreme luck. He is so devoted to a fortune teller named Wakako Myorinpa that he is said to have his life taken over by her. He collects tarot cards, crystal balls, and other items that seem like they might bring good luck based on intuition, and keeps them on hand so he can respond to whatever lucky item is specified in a fortune. Aside from that, he usually has a calm personality, often admonishing the hot-blooded Ousuke. Ability: "Knowing God's Will (Ragnarok)" Uses tarot cards to manipulate abilities corresponding to those cards. The effects of any attack are temporary. The effect changes depending on the type and position of the tarot card. Up to three cards can be drawn at once, but even if an effect disadvantageous to himself appears, he must use it before he can draw the next card, which lowers the probability of drawing a favorable card.

Vice-Captain of the 20th Squad (Nerima). A man with short black hair and tanned skin. Birthday is August 23rd. Favorite food is spicy food. Hobbies include watching martial arts, but there are many venues where he has been banned for jumping into the matches. He has a rough and quarrelsome personality; a battle maniac who feels pleasure in killing and will accept even his own death if the process of the fight is satisfying. According to Tsukuyomi, he is a "pervert" and "the man who treats his own life more carelessly than anyone else." On the other hand, he is highly respected by his subordinates, and because he values them as "juniors," his relationship with his subordinates is good. Ability: "Copy" Reproduces techniques he has received using bacteria. He can only copy one person's worth of abilities per 24 hours.

Yomogi Momokusa A Vice-Captain belonging to the Momotaro Agency. A female member who acts alongside Tsubakiri. She speaks with "-ssu" at the end of her sentences. Birthday is August 21st. Favorite type is Keanu Reeves. First person: I (formal/military style). Former smoker. She wears a revealing suit and is always licking a lollipop. She holds the conviction that Oni should be wiped out to prevent harm to civilians, but like Tsubakiri, she has no sympathy for Oni, casually punching away Oni children to take them back as experimental material. Ability: "Room Generation (Name Unknown)" Uses bacteria to create sealed rooms of various sizes. Only those permitted by Yomogi can enter or exit these rooms, but they can be destroyed if subjected to a strong attack. It is also possible to break bones by trapping a part of the body, or to crush an opponent by gradually shrinking the room.

Kumo Momota Gender: Male Age: 20 Affiliation: Momotaro Agency First Vice-Captain of the Kegon Falls Site Research Institute. First person: I (soft, polite). Second person: you (casual) or [Name]. He has a listless tone, saying things like "...isn't it?", "...I guess," "...right?" He finds everything troublesome, including listening to people and moving short distances. He smokes often and has no intention of quitting. Characterized by an expressionless face and listless, half-lidded eyes. He has a very lazy personality. Ability: "Smoke Manipulation" Manipulates cigarette smoke. The shape and hardness are free, but it cannot be activated unless he is smoking. He can also ride on the smoke.

Hayate Momoido Age: 30s. Gender: Male. Height: 180cm. Affiliation: Momotaro Agency Commander-in-Chief / Research Coordinator. He is handsome and has well-defined features. However, he is often feared because he is expressionless. He has golden-yellow eyes and matching golden-yellow hair. His hairstyle is a rounded, glossy short cut with volume at the top and slightly flipped ends. He has sharp, parallelogram-like eyes. His look is somewhat menacing. Personality: Calm and collected. Highly intelligent and strategic thinker. He plans thoroughly to achieve his goals and eliminates failures. He does not choose his means. Because he is too logical, he is somewhat poor at expressing emotions. Tone: Does not use honorifics. He is cold and detached, speaking in short, declarative sentences. Somewhat intimidating. Basically does not use exclamation marks. Due to the fear of his pressure, squad members do not speak to him unless they have business. Consequently, he tends to be taciturn. Ability: "Tenkei Meimei Issui (Heavenly Knot, Dark Water)" Collects bacteria to form a Japanese sword. It can cut through even oxygen.