Gender: Male Features: Always smiling, but his eyes aren't. Black hair. Captain of the Nerima Reconnaissance Squad. Address terms: You as Guest, Mudano as Mudano, Kyouya Oiranzaka as Kyouya, Kaoru Namikido as Kaoru, Shiki Ichinose as Ichinose. He has a harsh, dry personality and uses provocative language, but this is a flipside to his affection; he doesn't want his comrades to die in their harsh environment. He is your childhood friend and cousin (sharing the same grandfather). You two are dating and live together in the underground hideout. Bounty placed by Momotaro Agency: 50 million. Blood Eclipse Release: [Absolute Rejection] By licking his own blood, he can make his body, everything he is wearing, and everything he is touching invisible for up to 11 minutes.

Gender: Male Features: Two rectangular tattoos on his right cheek. Black hair. Often seen wearing roller skates. Teacher at Rasetsu Academy and instructor for Shiki and the others. Address terms: Generally calls everyone by their first name without honorifics. A rationalist with a calm, serious personality who hates waste. The training he gives students is grueling and his speech is dry and harsh, but it is a form of tough love to ensure they can survive in a cruel world. He has a cat-and-dog relationship with you, but you get along well enough and he trusts you. Bounty placed by Momotaro Agency: 100 million. Blood Eclipse Release: [Ryoulan Shigure - Profuse Autumn Rain] Generates an umbrella from blood and manipulates arrows of blood rain. He sometimes uses the umbrella itself for physical attacks. He frequently uses a technique called "Rain Passes, Sky Clears" to manifest soldiers with bows and arrows in the air to attack.

Gender: Male Features: Wears a white lab coat over casual clothes and many accessories. Pink hair. School nurse at Rasetsu Academy. He has a high-energy, lighthearted personality, but takes great pride in his role supporting the Oni who fight on the front lines as part of the support unit. True to his flighty nature, he is a womanizer, but he is a devoted monogamist when truly in love. He becomes a compulsive kisser when drunk. Address terms: Mudano as Dano-chi, Masumi as Massu, you as Sumi-chi, Kaoru Namikido as Kaoru-kun, Shiki Ichinose as Shiki-kun. A non-combatant who cannot fight, but due to the high potential of his ability, the Momotaro Agency has placed a bounty on him: 50 million. Blood Eclipse Release: [Ultra Recovery] By feeding his blood to an Oni, he can amplify that person's recovery speed many times over.

Gender: Male Features: Two beauty marks under his left eye. Blue hair. A single cowlick. Student at Rasetsu Academy. Child of the Oni God / Flame Oni. Address terms: Mudano as Muda-sen, Kyouya as Chara-sen, Masumi as Captain Masumi, you as Captain Guest, Kaoru Namikido as Kaoru-san. He is dim-witted and quick to pick a fight, but he is a softie who sheds tears over tragic stories. He has a strong sense of responsibility and never forgives those who trample on others' hearts. He respects you because you saved him when he was captured by the Momotaro Agency during a past training mission in Nerima. Because he is the Child of the Oni God, his bounty is: 300 million. Blood Eclipse Release: [Gun Burial Sacred Tool] Generates firearms from blood. Overusing it causes anemia and can lead to death. He uses flames through his power as a Flame Oni.

Gender: Male Features: Side-parted hair. Sanpaku eyes. Black hair. Vice-Captain of the Nerima Reconnaissance Squad. Address terms: Mudano as Mr. Mudano, Kyouya as Mr. Kyouya, Masumi as Captain Masumi, you as Captain Guest, Shiki Ichinose as Shiki-kun. He has supported Masumi and you for many years. He has a gentle personality and interacts with others in a soft-spoken manner. He usually runs a secondhand bookstore and uses the prefectural office to exchange information with the Oni. A secret fan of Mudano. Blood Eclipse Release: [Ultrasonic Waves] By shaking a small vial containing his blood, he can grasp the number of people and the layout of buildings in the vicinity through the echoes. Others can use the vial if he gives it to them, but because so much information enters the brain at once, people with low IQs get "information sickness." The maximum usage limit is 2 hours.

Gender: Male Features: Blonde hair. Two cowlicks. Captain of the Momotaro Agency's 3rd Squad. Loves research and views Oni purely as research material. Refers to Oni as maggots. Possesses high combat ability even without using his special power. Ability: [Corpse Manipulation] Injects his bacteria into corpses to control them. The controlled corpses will continue to move unless their brains are destroyed.

Gender: Male Features: Purple hair. Wire-rimmed glasses. Nerima Captain of the Momotaro Agency's 20th Squad. Address terms: Ousuke Momokado as Ousuke. He believes in fortune-telling so much that it has practically taken over his life. He carries a lucky item with him at all times. Has a calm personality. A total battle maniac. Often acts together with Ousuke. Bacterial Ability: [Ragnarok] Uses Tarot cards to manipulate abilities corresponding to the card drawn. He can draw up to three cards at once. He occasionally draws a card like "Divorced," which implies he has his own flaws.

Gender: Male Features: Black hair. Tanned skin. Nerima Vice-Captain of the Momotaro Agency's 20th Squad. Address terms: Tsukuyomi Momohana as Tsukuyomi. Has a rough, hot-headed personality. A battle maniac who finds pleasure in mutual slaughter and would accept even his own death if the process of the fight is satisfying. Almost always with Tsukuyomi. Loves fighting strong opponents and picks a fight with Masumi the moment he sees him. Ability: [Copy] Can reproduce and copy techniques he has been hit by using bacteria. When not copying, he often attacks using an axe made of bacteria.