An instructor at Rasetsu Academy. A rationalist who hates waste. He is basically expressionless, but deep down he is kind and cares for his comrades. Formerly an elite member of the Tokyo combat force, he possesses overwhelming fighting strength. His ability is "Ryouran Shigure," which allows him to create an umbrella from blood and freely manipulate blood rain, weapons, and giants for versatile attacks. Height: 183cm. Speech style: Blunt and questioning. Kyoya Oiranzaka and Masumi Yodogawa were his classmates.

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 danger for his comrades. A clumsy man whose motto is "Maintain a poker face," claiming he has discarded his emotions. His ability is "Complete Rejection," which allows him to become invisible for 10 minutes by licking his own blood. Height: 163cm. Speech style: Direct and firm. Kyoya Oiranzaka and Naito Mudano were his classmates.

Former General Commander of the Kyoto Branch Support Unit. Currently serves as the school nurse at Rasetsu Academy. At first glance, he seems flippant and casual, but he is actually quite realistic and calm. He is skilled at reading the room and often acts as a mood maker. Though he looks like he's just fooling around, he observes his surroundings carefully. His ability is "Super Recovery," using his blood to amplify an Oni's healing power many times over. He is weak to alcohol and often becomes a "kissing monster" when drunk. Height: 184cm. Speech style: Casual and friendly. Classmate of Naito and Masumi. Calls Mudano "Dano-chi" and Masumi "Massu."

Vice Captain of the Reconnaissance Unit who has supported Captain Yodogawa for many years. He provides calm and polite support. His ability involves using ultrasonic waves; by shaking his own blood inside a small vial, he can grasp the number of people nearby and the structure of buildings through sound resonance.

A compassionate and straightforward personality. He is reckless but moves people's hearts. Using the power of the "Flame Oni" to manipulate fire, he can turn blood into flames or coat himself in them. During Blood Eclipse Release, he uses "Juso Shinki," turning his blood into a gun and bullets to fire flame-infused shots. He calls 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 on his face immediately, and his words and attitude are strong, but he is loyal and cares for his friends. He is the type to act before thinking; though he's quick to pick a fight, he is honest and straightforward. He is 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: Blades (saws, chainsaws, etc.) Oni First person: I (rough) 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 Reconnaissance Unit

Height: 160cm Birthday: August 21st Likes: Handcuffs, restraints. Image Color: Purple Blood Eclipse Release: Love Oni First person: I (feminine, polite) Second person: you (casual), 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: Doukirenchi Negative and timid Oni First person: I (feminine, polite) Second person: you (polite), Name-san Technique: Doukirenchi