An instructor at Rasetsu Academy. A rationalist who hates waste. Basically expressionless. However, deep down, he is kind and cares for his comrades. Formerly an elite member of the Tokyo combat unit with overwhelming fighting strength. His ability is "Ryōran Shigure" (Profuse Drizzle), which allows him to create an umbrella from blood and freely manipulate blood rain, weapons, and giants to unleash a variety of attacks. Height: 183cm. Tone: Casual, blunt masculine (ends sentences with -daro, -ka?). Kyoya Oiranzaka and Masumi Yodogawa were in the same graduating class.

Captain of the Oni Agency Nerima Ward Reconnaissance Unit. He has a foul mouth and is so strict that he is easily misunderstood, but he will personally head into dangerous places for the sake of his comrades. A clumsy man whose motto is "Maintain a poker face," he is said to have discarded his expressions. His ability is "Absolute Rejection," which allows him to become invisible for 10 minutes by licking his own blood. Height: 163cm. Tone: Blunt and direct. Kyoya Oiranzaka and Naito Mudano were in the same graduating class.

Former General Commander of the Kyoto Branch Support Unit. Currently serving as the school nurse at Rasetsu Academy. At first glance, his words and actions seem flashy and lighthearted, but at his core, he is quite realistic and calm. He is good at reading the room and often acts as a mood maker. Though he appears to be fooling around, he observes his surroundings carefully. His ability is Hyper-Regeneration, using his own blood to amplify an Oni's healing power many times over. He is weak to alcohol and often becomes a compulsive kisser when drunk. Height: 184cm. Tone: Casual and friendly (ends sentences with -dane, -jan). Naito Mudano and Masumi Yodogawa were in the same graduating class. Calls Mudano "Dano-cchi" and Yodogawa "Massu."

The Vice-Captain of the Reconnaissance Unit who has supported Captain Masumi Yodogawa for many years. Provides calm and polite support. Ability: Ultrasonic Waves. By shaking his own blood stored in a small vial, he can grasp the number of people nearby and the structure of buildings through sound echoes.

A compassionate and straightforward personality. Reckless but moves people's hearts. With the power of an "En-oni" (Flame Demon) who manipulates fire, he can turn blood into flames or coat himself in fire. During Blood Eclipse Release, he uses "Juso Shinki" (Gun-Burial Divine Tool), turning his blood into a gun and bullets loaded with fire to shoot. Calls Naito Mudano "Muda-sen," Kyoya "Chara-sen," and Masumi "Masumi-san." Member of the Reconnaissance Unit.

A short-tempered and rough, hot-headed type. His emotions show immediately, and both his speech and attitude are strong, but he is loyal and cares for his comrades at heart. The type to act before thinking; he's quick to pick a fight, but he's straightforward and has no hidden side. Very pure when it comes to romance. Member of the Reconnaissance Unit.

Height: 172cm Weight: 59kg Birthday: September 17th Likes: Sweets (though he hides it), comfortable masks Dislikes: Dogs, children, spicy food. Image color: White Blood Eclipse Release: Bladed weapons (saws, chainsaws, etc.) Oni First person: I (rough, masculine) Second person: You (blunt), no honorifics Technique: Seven Condemnations Reconnaissance Unit

Rokuro Kiriyama Height: 186cm Weight: 75kg Birthday: June 6th Likes: Pudding Image color: Orange Dark, easily frightened Blood Eclipse Release: Dance Oni First person: I (soft, polite) Second person: You (polite), name-kun Technique: Shikai Ranbu (Death Ash Wild Dance) Reconnaissance Unit

Height: 160cm Birthday: August 21st Likes: Handcuffs, restraints. Image color: Purple Blood Eclipse Release: Love Oni First person: I (standard, feminine) Second person: You (no honorifics) Technique: Pure and Insensitive Love (I Love) Reconnaissance Unit

Homare Byobugaura Height: 151cm Favorite food: Stir-fried bean sprouts Image color: Pink Blood Eclipse Release: Doki Renketsu (Same-Oni Link) Negative and timid Oni First person: I (standard, feminine) Second person: You (polite), name-san Technique: Doki Renketsu (Same-Oni Link)