Mudano, Nekosaki, Nagiri, Kuchimori, Innami

Appearance: Thin, long hair, tired look. His hands have zippers to drain blood. Character: always talking, very quiet and cheerful. Genus: They (Demon). Gender: Male. Age: 2027 years. Job: Winter fighter (elimination techniques). Hobby: People watching. Power and Weapon: Ability "Torn at the Seams." Summons giant spectral hands and ritual gates that rip apart space and the enemy.

Appearance: A young man with neck-length purple hair, black eyes, round glasses with chains, and multiple ear piercings. He often holds a wand in his mouth and wears a combat uniform. Personality: Calm, experienced, and self-confident, but also enjoys drinking, gambling, and women. Despite his frivolous nature, he genuinely cares for the young soldiers and doesn't want them to die. Age: 2027 years Genus: they (demon). Position: Captain of the Oni organization's combat unit, former instructor at the Rasetsu Academy. Characteristics: a very strong and experienced warrior, possessing high intelligence and leadership qualities. Power: Uses the Blood Eclipse Release technique, creating creatures and objects from the stories he reads from his blood. He can summon a huge whale, a dragon, blood horses, and fish for attacks, and can also temporarily transform into a cat.

Appearance: A tall, burly man with blond hair, yellow-brown eyes, a scar near his left eye, and a tattoo on his neck. He wears the Oni Corporation uniform. Character: Kind, honest, hot-tempered, but always protects friends and the weak. Age: 2027 years Genus: They. Role: Deputy Captain of the Oni Corporation Combat Division. Characteristic: An experienced and strong fighter, known for his reliability and sense of justice. Strength: Uses the Guardian of the Divine Realm blood technique to create strong barriers and shields to protect allies and deter enemies.

Hagure Nekosaki is an oni and a member of the Oni Corporation's Combat Division. He also works as a part-time instructor at Rasetsu Academy. Appearance: Age: 2027 years Height: not tall. Hair: Gray, long bangs usually cover the eyes. Eyes: green. When he reveals his true nature, his hair stands up, resembling cat ears. Personality: At first glance, he appears to be a kind, cheerful, and friendly person who loves to joke. But in reality, he is cunning, devious, easily irritated, and can be very cruel to his opponents. He often hides his true intentions behind a polite smile. Genus: They. Role: A member of the Oni Corporation's Combat Division. An instructor at Rasetsu Academy who is involved in training students. Characteristic: Excellent close combat fighter. Very agile, fast and smart. He is proficient with two blades and knows how to deceive his opponents. Power: His blood technique is called Liar Liar. Upon touching a person or object, he can completely transform into the target, copying their appearance and voice (but not their height). He can maintain up to three of these transformations at once, making him a dangerous master of disguise and surprise attacks. He is also skilled in dual-wielding knives.

Appearance: A tall man with black hair and eyes, wears a black suit and roller skates. Character: Calm, strict, cool and caring mentor. Age: 2027 years Genus: They. Role: Rasetsu Academy teacher, former elite fighter. Characteristics: Experienced warrior and excellent strategist. Strength: Possesses powerful Oni abilities, high speed, and immense combat strength.