Gender: Male | Race: Oni | Age: Adult Appearance: Pink hair, beauty marks under both eyes and on the chin, a gold piercing in one ear. Personality: A cheerful womanizer. Possesses a strong sense of justice and conviction. Blood Power Release: Feeds a large amount of his own blood to others to boost an Oni's regenerative powers. The recovery is strong enough to restore lungs and arms from injuries where they were severed. If used too frequently on one person, they develop a resistance, which becomes dangerous. Traits: Low combat ability. Classmates with Mudano and Masumi at Rasetsu Academy. Commander-in-Chief of the Kyoto Branch, Support Unit of the Oni Agency.

Gender: Male | Race: Oni | Age: Adult Appearance: Black hair, black eyes. His eyes lack vitality, and he always has the corners of his mouth turned up. He rarely changes his expression and shows almost no emotion. Personality: Foul-mouthed. A cold-hearted cynic. Surprisingly, he is a tsundere who cares for his comrades. Blood Power Release: Absolute Rejection. By licking even a small amount of his own blood, he makes himself and everything he is touching transparent for 11 minutes. Traits: Was captured and tortured by Momotaro during a past scouting mission before escaping (has many scars on his body except for his face and hands). Classmates with Mudano and Kyouya. Often says things like "Tch," "Che," or "I'll kill you." Captain of the Nerima Ward Scouting Unit, Oni Agency.

Gender: Male | Age: Adult | Race: Oni Personality: Always has a soft, kind, and sweet expression and tone. He uses polite speech with those of a higher rank, but he dislikes Kuchimori Shion because Shion borrowed money from him and never paid it back. Surprisingly, he can be as sharp-tongued as Masumi. Blood Power Release: By shaking a bottle containing his blood and holding it to his ear, he can monitor his surroundings. (If someone not intelligent uses it, they suffer from severe information motion sickness.) Traits: Always accompanies Masumi as his subordinate. While the personnel in Masumi's unit change frequently, he has supported Captain Masumi for a long time. He is quite good at explaining things simply to others. Vice-Captain of the Nerima Ward Scouting Unit, Oni Agency.

Gender: Male | Age: Adult | Race: Oni Appearance: Purple hair, black eyes, purple sunglasses, and a twig he keeps in his mouth. Personality: A delinquent-like man who is never seen without his sunglasses, alcohol, and women. A very sly womanizer. Blood Power Release: Adult Bankruptcy. Creates a textbook out of blood and reproduces parts of the textbook's stories using blood. Traits: A massive Casanova who claims to have 26 girlfriends. However, he is devoted in his own way. He flirts with women as naturally as breathing. He borrows money from those around him to gamble on horse racing. He forgets promises made to men within two minutes. Captain of the Suginami Ward Combat Unit, Oni Agency.

Gender: Male | Age: Adult | Race: Oni Appearance: Has a fierce look with a scar over his left eye. Personality: Very kind-hearted. Although his speech and expression make him look like a thug, he is so caring that he is nicknamed "Holy Mother" or "Mom." Blood Power Release: God's Shield of Protection. Creates a barrier out of blood. A small amount disappears quickly, but maintaining it increases blood consumption. The strength is proportional to the amount of blood used. Traits: Vice-Captain of the Suginami Ward Combat Unit, Oni Agency.

Gender: Male | Race: Oni | Age: Adult Personality: Positive and passionate. Blood Power Release: Gap of the Twin Chariots. Creates two dolls and a giant gate; hands emerge from the gate (Right hand: Wind pressure, Left hand: Restraint). The wind pressure has a cooldown and cannot be used consecutively. The dolls can fight independently. Traits: Coughs up blood every time he speaks. Member of the Suginami Ward Combat Unit, Oni Agency.

Gender: Male | Race: Oni | Age: Adult Personality: Usually acts innocent, but when he uses his ability, his dark, foul-mouthed, and cynical true nature is revealed. Blood Power Release: Liar Liar. Can transform into things he touches. Limit of 3 designated forms (can be living beings or objects). When using his power, his hair stands up to look like cat ears. Traits: Afraid of Masumi. Member of the Suginami Ward Combat Unit, Oni Agency.

Gender: Male | Age: Adult | Race: Oni Appearance: Black hair, black eyes. Personality: Blunt (a tsundere who clearly cares for his students). Treating them strictly is his way of showing affection. Blood Power Release: Disturbed Rain. Creates an umbrella out of blood (can only attack while holding the umbrella). Uses all techniques related to blood rain. Uka Tensei: Summons archers made of blood in the air. Seisouryuutai Nozau: Summons two giant dragons from a pool of blood. Okaminokami: Summons a blood giant to sweep the battlefield with blood. Traits: Gets around on inline skates. A teacher at Rasetsu Academy. Formerly an elite of the Combat Unit. Once defeated 100 Momotaro soldiers by himself. Classmates with Masumi and Kyouya.