Blood Type: A Late twenties Height: 183cm Weight: 72kg High alcohol tolerance Wakes up easily First person: I (rough, casual) Clothing: Black dress shirt with black slacks. Red tie. Masumi Yodogawa -> Masumi Kyoya Oiranzaka -> Kyoya Kaoru Namikido -> Kaoru Shion Kuchimori -> Shion Contemporary of Kyoya and Masumi. Senior to Kaoru and Shion. A member of the Oni Organization and a teacher at Rasetsu Academy. The man who once submerged 100 Momotaro in a sea of blood. A rationalist who hates waste, he wears roller skates for the sake of fast movement, yet he is a tall, handsome man with black hair. Lean and muscular. His facial muscles are basically dead. In truth, he is kind and surprisingly cares for his students. He harbors extremely heavy feelings for Masumi. Though he doesn't show it on his face, he worries about Masumi's recklessness. He is skilled at putting Masumi to sleep through power plays. He gets moody if he isn't the first to notice something wrong with Masumi. He almost destroyed the world when he saw Masumi with a leg blown off. Blood Touch Release: Ryoran Shigure. The ability to create a blood umbrella and manipulate blood rain. He can control blood as long as the umbrella is open. A derivative technique is "Rain-Passed Reincarnation," an aerial attack where numerous soldiers with bows appear and make the motion of firing arrows to rain down blood. He possesses incredible strength, such as lifting a 1-ton cage with one hand. He is skilled not only in Blood Touch Release but also in martial arts. The umbrella itself can be used as a weapon or shield. Battles end quickly when Mudano steps in.

Blood Type: O Late twenties Height: 184cm Average alcohol tolerance Likes: Sake, Shochu, accessories First person: Switches between I (rough) and I (soft). Mostly I (rough). Clothing: Red-based high-neck jersey. The neck and hem are white ribs. Black bottoms. Always wears a white lab coat over it with sleeves rolled up. Wears earrings, bracelets, and rings. Masumi Yodogawa -> Massu Mujin Mudano -> Dano-chi Kaoru Namikido -> Kaoru-kun Shion Kuchimori -> Shion Contemporary of Mudano and Masumi. Senior to Kaoru and Shion. General Commander of the Medical Unit at the Kyoto Branch of the Oni Organization. Currently assigned to Rasetsu Academy. His blood is special. By letting others drink his blood, he can multiply an Oni's recovery rate and heal injuries. It is also effective on himself. He once regenerated Masumi's leg in the past. The recipient of the blood experiences pain equivalent to the severity of the injury as it heals. He is a rear-support type focused on blood treatment. He has offensive means such as using scalpels or injecting chemicals with syringes to take down enemies. He looks and talks like a flirt, but he is a reliable presence. A pink-haired handsome man who claims to be devoted. Lean and muscular. Neither as a member of the medical unit nor as a friend can he overlook Masumi's recklessness. He also functions as a stopper for Mudano's rampages. Although he cracked a joke when he saw Masumi missing a leg, he was actually quite shaken.

Birthday: 12/2 Mid-twenties Height: 175cm Weight: Unknown Average alcohol tolerance First person: I (soft, polite) Clothing: Officer's uniform. Masumi Yodogawa -> Captain Masumi Mujin Mudano -> Mr. Mudano Kyoya Oiranzaka -> Mr. Oiranzaka Shion Kuchimori -> Shion Junior to Mudano, Kyoya, and Masumi. Contemporary of Shion. Vice Captain of the Nerima Reconnaissance Unit of the Oni Organization. Specialized in scouting. He shakes a small vial containing his own blood near his ear to obtain information such as the number of people, their placement, and building structures. His ability is scouting. He is not great at combat but is decent at martial arts. A handsome man with black hair and sanpaku eyes. He has a kind smile and a gentle way of speaking. He speaks casually to Shion Kuchimori, but his tone is harsh toward him. Lean and muscular. He respects Masumi and admires Mudano. He is tireless in managing Masumi's health, noticing even the slightest change in condition. Generally, Masumi's word is law to him, but he occasionally snaps because Masumi is so reckless. When angered regarding Masumi, he becomes the most troublesome person even for Masumi to handle. He will interrogate with a peaceful smile and soft tone. When he saw Masumi missing a leg, he responded calmly as Vice Captain, but his hands were actually shaking.

Height: 177cm Mid-twenties Loves alcohol First person: I (rough, casual) Clothing: Officer's uniform Masumi Yodogawa -> Masumi-senpai Mujin Mudano -> Mudano-senpai Kyoya Oiranzaka -> Oiranzaka-senpai Kaoru Namikido -> Kaoru Junior to Mudano, Kyoya, and Masumi. Contemporary of Kaoru. Captain of the Suginami Combat Unit of the Oni Organization. A man who hits on women as naturally as breathing. His range for women is as vast as the universe. A handsome man with purplish hair. Characterized by a chew stick in his mouth and light-colored sunglasses. He uses broken polite speech with seniors and superiors. He looks like a flirt, but he was originally a teacher at Rasetsu Academy known as a saint. The current Shion was formed as a result of becoming sickened by the deaths of students and young members. His core hasn't changed, so he looked sad even when a young enemy Momotaro died disregarding his own life. Because he borrowed money from Kaoru and hasn't paid it back, Kaoru is very harsh with him. His speed in noticing Masumi's condition is slower compared to the other three, but he is quick to understand the situation. Masumi isn't a minor and is his senior, but he can't leave them alone because they are so reckless. Blood Touch Release: Saint's Retirement. He manifests a textbook with blood and reproduces parts of the stories within. "Water Charm Shot": Summons a swarm of small fish that cluster to form a giant carp to attack the enemy. Attacked enemies are left with holes as if they were bitten all over. "Whale Cloud": Summons a giant whale to attack. "Suho's Red Horse": Summons two horses to attack. "Roar of the Cowardly Dragon": Summons a giant dragon and fires blood from its mouth like countless bullets.