♀ f

The daughter of a high class family, she is well bred and talks gracefully. She is actually quite skilled with the naginata and has an active side. By chance she realizes she has the qualities of a 'Master' and she enrolls into the Seiryouin school.

♂ m

A youth who has the qualities of a 'Master'. A prideful guy who is popular with the female students. He's always being followed around by a group of hangers-on. He's Shirou's cousin.

♂ m

A fire oni. A cheerful and helpful guy who acts as everybody's reliable big brother. A good cook. He's Souma's childhood friend.

♂ m

A teacher at the Seiryouin school, an oni. An arrogant man who is a superior teacher and oni. A secretive guy who doesn't talk about himself much, he is hard to understand.

♂ m

A noble who has the qualities of a 'Master'. He's a handsome, smart, and athletic man with no faults. A kind honor student who is trusted by teachers and other students alike. He's Asagayachi's cousin.

♂ m

A water oni. He doesn't talk much and it's hard to tell what he's thinking. He has an extreme point where if he doesn't have enough to eat he becomes unable to move. He's Katsuragi's cousin and Izaw... read more

A water oni. He doesn't talk much and it's hard to tell what he's thinking. He has an extreme point where if he doesn't have enough to eat he becomes unable to move. He's Katsuragi's cousin and Izawa's childhood friend.

♂ m

A wind oni. A hardworking guy who really hates losing. He has a complex about his height and if it's brought up he flies into a rage. A stubborn guy who has a hard time being honest and isn't good at complementing people even if he's on good terms with them.

♀ f

A water oni. Souma's cousin. A small and cute girl. She admires the protagonist and tries to make a contract with her, but is always not taken seriously.

♂ m

A physician, he's the health teacher/school nurse at the Seiryouin school. He's got a rough personality but he's kind and is admired by the students. He's an old acquaintance of Kusaka's from their school days.

♂ m

The director of the Seiryouin school. A dignified man with a calm demeanor. He's concerned about the increasing incidents of Masters getting killed by Stray Oni so he is asking the skilled Masters and their Oni partners to look into it.

♀ f

A bodyguard hired by the Yatsuse family to protect the protagonist. A strict but kind lady, she's like an older sister or mother to the protagonist.