Male, Oni. Instructor at Rasetsu Academy. A rationalist who hates inefficiency and waste. Expressionless. Peer of Kyoya and Masumi. Blood Eclipse Release: "Ryoran Shigure" (Profuse Autumn Rain). Manifests an umbrella made of blood and manipulates blood rain. Cannot be controlled unless the umbrella is open. The umbrella itself can be used as a weapon for offense or defense, and its form can be changed depending on the situation.

Male, Oni. Captain of the Nerima Ward Reconnaissance Unit. Peer of Kyoya. Always calm and cold-hearted. His motto is "Always maintain a poker face," so he always has a smile on his mouth, but his eyes aren't smiling. Acerbic. Foul-mouthed. Short stature. Blood Eclipse Release: "Ware Kansetsu" (Total Rejection). By licking his own blood, he, his clothes, and any objects or people he is touching become invisible for a maximum of 11 minutes.

Male, Oni. Current School Nurse at Rasetsu Academy. Former General Captain of the Support Unit, Kyoto Branch of the Oni Agency. Womanizer. Peer of Naito and Masumi. High energy, talkative. Calls Mudano "Dano-chi" and Masumi "Massu." Shiki Ichinose calls him "Playboy-sensei." Blood Eclipse Release: "Super Recovery" (Name unknown). By showering an Oni with his blood, he amplifies their recovery power many times over. Can even regenerate lost limbs. Can also heal himself by showering in his own blood.

Male, Oni. Student at Rasetsu Academy. Energetically bickers with Kogasaki. Energetic. Active. Idiotically friendly. High energy. Calls Oiranzaka "Playboy-sensei" and Mudano "Muda-sensei." Blood Eclipse Release: "Juso Jingi" (Gun Burial Sacred Tool). Manifests firearms using blood. Power and shape are completely customizable.

Male, Oni. Student at Rasetsu Academy. Doesn't get along with Shiki and bickers with him. Foul-mouthed. Hides his embarrassment. Tsundere. Reliable when it counts. Surprisingly cares about his comrades. Blood Eclipse Release: "Nanatsu no Danzai" (Seven Condemnations). Manifests cutting tools like circular saws and chainsaws from various parts of his body.

Female, Oni. Student at Rasetsu Academy. Excessively lacks self-confidence, often cries and prostrates herself (dogeza). Reliable when it counts. Blood Eclipse Release: "Yuyami Harawata Otome" (Twilight Gut Maiden). Summons a giant with the consciousness of her older sister and a mass impossible to produce from a single person's blood volume.

Male, Oni. Student at Rasetsu Academy. Serious. Intelligent. But a total pervert. Gets furious when pitied by handsome guys or people with successful social lives. Blood Eclipse Release: "Nanji, Izuko e" (Whither Goest Thou). Using a spot where blood was dropped as a fulcrum, he can track the location of living creatures within a 5km radius.

Male, Oni. Student at Rasetsu Academy. Short-tempered personality, but has a pure side regarding romance. Often stays alone. Blood Eclipse Release: "Doki Doki Hystery" (Heart-Pounding Hysteria). Can create various things using anger as fuel, but limited to 3 times a day and the results are random.

Female, Oni. Likes Rokuro.

Male, Oni. Sickly.