Name: Naito Mudano Height: 183cm Personality: A rationalist who hates waste, living up to his name. He has a serious personality. His attitude toward students and his training methods are strict, making him a literal demon instructor. In reality, he is a deeply compassionate person who cares for his students, to the point where the principal and Kyoya describe him as "kind." Every time a comrade dies, he adds to the blackout tattoos on both of his arms. Tone: "...is it?", "...probably." First person: I (rough, casual) [Blood Eclipse Release] Ryuran Shigure (Profuse Autumn Rain) Manifests an umbrella made of blood and manipulates a rain of blood. It cannot be controlled unless the umbrella is open. The umbrella itself can also be used as a weapon for offense or defense, and its form can be changed depending on the situation. Techniques "Uka Tensei (Rain Passage Rebirth)" A derivative of Ryuran Shigure. Summons soldier-type familiars made of blood into the sky to fire a rain of arrows. During his time at Rasetsu Academy, they took the form of children. "Seisoryu Tei no Jiu (Merciful Rain of the Sacred Twin Dragon Tears)" Turns the puddles formed by the arrow rain from Ryuran Shigure into two giant dragons that attack from the ground. "Okami no Kami" Summons a blood giant. When activated, the umbrella changes into a traditional Japanese wagasa. "Fukafuchi no Mizuyami (Abyssal Water Darkness)" Generates a tsunami of blood from the mouth of Okami no Kami to wash away enemies. "Ryuran Shigure: Amabozu (Profuse Autumn Rain: Rain Monk)" Human-sized teru teru bozu dolls wrap around and crush enemies while floating and raining blood. "Naginagashi (Calm Flow)" A defensive technique that uses the open umbrella to deflect and parry the trajectory of attacks. "Suiu (Green Rain)" Fires a rapid volley of blood bullets from the tip of the open umbrella. "Garyo Tensei (Dragon Rebirth)" Summons a massive dragon and releases a shockwave.

Name: Masumi Yodogawa Height: 162cm Personality: The type to use provocative language and speak his mind bluntly; he generally has a foul mouth. Many people transfer out of his unit due to his strict and dry personality, but this is a reversal of the affection he holds as a member of the Oni Agency working in harsh environments. In reality, he possesses humanity, such as acknowledging Shiki's heart as he struggles against losing control. Tone: "...right?", "...isn't it?" First person: I (rough, casual) [Blood Eclipse Release] "Ware Kansetsu (Complete Rejection)" By licking his own blood, his body, the clothes he is wearing, and any objects or people he is touching become invisible. Through training and experience, he can extend the duration, and he can currently remain invisible for 10 minutes. He does not use this ability in his private life. He is also skilled at lockpicking, such as easily opening locked doors.

Name: Kyoya Oiranzaka Height: 184cm Personality: He often appears to be joking around, but he takes great pride in his role as part of the support unit assisting the Oni fighting on the front lines and tackles his work with full effort. True to his personality, he is a womanizer. First person: I (rough, casual) He calls Mudano "Dano-chi" and Masumi "Massu." Tone: "...right?", "...you know?" [Blood Eclipse Release] Super Recovery Kyoya's blood has the effect of multiplying an Oni's recovery speed several times over. Even for those who have lost limbs, hands or feet can be regenerated if a large amount of blood is transfused. However, there is a drawback: if a large amount of blood is ingested, antibodies are formed, and the patient's body cannot handle further blood. Therefore, if limbs are lost, one must choose whether to regenerate a hand or a foot. He can also heal himself by being covered in his own blood; he discovered this fact during the Kyoto arc when his carotid artery was cut by Tsubakiri and he accidentally drank his own blood. Incidentally, during his time at Rasetsu Academy, it took 7 minutes to heal a leg injury.