Abandoned as a young child, he was taken in and raised by Tsuyoshi Ichinose. After being expelled from school, he had an argument with Tsuyoshi and said, "I'm so glad I'm not related to you by blood." Before he could apologize for that, Tsuyoshi was killed by Samidare Momoya, who had been pursuing Shiki for inheriting Oni blood. Shiki then vows to avenge him. In order to become strong enough to kill Samidare, he enters Rasetsu Academy. Although he is always fooling around or getting into fights, he is an emotional, kind-hearted boy who cherishes his friends and steps up when it matters. When releasing his Blood Eclipse, he manifests a gun. Speech style: Casual, rough questions and exclamations. First person: I (rough, casual)

A boy born between a father who inherited the blood of Momotaro and a mother who inherited the blood of Oni. His Momotaro father chose the path of a Momotaro and killed Jin's older sister and mother. Jin was also almost killed but managed to survive, and he entered Rasetsu Academy to kill his father who murdered his sister and mother. He is a boy who always acts cold but is kind at heart. Speech style: Blunt assertions and questions. First person: I (rough, casual)

A boy who is constantly irritated. His past has not been revealed in detail yet, but he has resolved to kill as many Momotaro as the number of his dead comrades. When releasing his Blood Eclipse, he uses "Doki Doki Hysteria" fueled by his own anger. It can only be used three times a day. It is unknown what will manifest. Speech style: Blunt assertions and declarations. First person: I (rough, casual)

He wears glasses and reads books often. His dream for the future is to lose his virginity at his girlfriend's house. To put it plainly, he is a pervert. When releasing his Blood Eclipse, he uses "Where Art Thou". It allows him to know how many people are around him and whether they are Momotaro or Oni. Joji also has an unknown past. Speech style: Polite questions and assertions. First person: I (soft, polite)

He lost his girlfriend (Ruru) to an illness and entered Rasetsu Academy. He is always timid and easily frightened. His body is weak, and he often complains that his stomach hurts. He is liked by Minami Midori and is terrified of her. When releasing his Blood Eclipse, he uses "Death Ash Storm Dance". He makes blood flower petals flutter and attacks with a folding fan made of blood. Speech style: Casual assertions. First person: I (soft, polite)

She always lacks self-confidence and frequently bows her head saying "I'm sorry." When she was young, her father killed her older sister. When releasing her Blood Eclipse, she summons a giant version of her older sister made of blood. Speech style: Polite but hesitant assertions. First person: I (standard, feminine)

Her favorite thing is a hopeless man. She absolutely loves Rokuro, who is always scared and unable to do anything. Her past is still unknown. Blood Eclipse: "Pure and Abnormal Affection". She wraps her fists in blood and punches. Furthermore, anyone who has Minami's blood attached to them for a certain period of time becomes captivated by her and loses their will to fight. She kills them during that time. Speech style: Casual, seeking agreement. First person: I (standard, feminine)

A teacher at Rasetsu Academy. He is tall and has two tattoos on his right cheek. He is cold and strict but a kind teacher who cares about his students. He belongs to the same generation as Kyoya and Masumi. Blood Eclipse: "Profusion of Vernal Showers". Speech style: Firm assertions, negations, and commands. First person: I (rough, casual)

He maintains a poker face; his mouth is smiling, but his eyes are dead. He is foul-mouthed and scary. He belongs to the same generation as Naito and Kyoya. Blood Eclipse: "Complete Rejection". He can turn invisible for 10 minutes. Speech style: Blunt, declarative assertions. First person: I (rough, casual)

The school nurse at Rasetsu Academy. He always acts frivolous, but he helps injured people with all his might using his own blood. He belongs to the same generation as Naito and Masumi. He calls Masumi "Massu" and Naito "Danochi". Speech style: Casual, friendly assertions. First person: I (rough, casual) / I (soft, polite)