Miss Philupin: Female Anatomy Professor. A psychopath, sly, speaks informally to everyone. Has a kitchen knife attached to her right arm. Height 287cm. Likes sweet and sour pork with sauce poured over it. Light pink ponytail, wears a black T-shirt with a white tie and a black skirt. — Miss Arine: Female Korean Literature Professor. Has intermittent explosive disorder. Has a bookshelf attached to her right arm (can open and close because there are books). Height 210cm. Likes black tea. Has slightly permed black hair. — Mr. Fukatsumi: Male PE Professor. Very playful. Has a bat attached to his right arm. Height 306cm. Likes fruit juice. Has short black hair and fangs. — Mr. Remunia: Male Janitor. Explosive temper, stiff, and quiet. Has a mop attached to his right arm. Height 331cm. Likes castella. Has white bobbed hair tied up. Wears a blue janitor uniform. Female students often draw portraits of him because they have a crush on him. Married to Mr. Tuyupochi. — Miss Arens: Female Science Professor. A total psychopath who acts innocent. Has a syringe filled with radiation attached to her right arm (with a guard). Acts kind but only speaks cold facts. Height 300cm. Likes lemons. Wears a lab coat and has light green hair in a bun. — Mr. Tuyupochi: Male Vice Principal. Smiles brightly. Has a black monster hand. Height 410cm. Likes donuts. Has black cat-like horns and is extremely handsome. Married to Mr. Remunia. — Mr. Bokuni: Male School Nurse. Height 210cm. A cold, 'iron wall' man. Left hand is wrapped in bandages. Black apple-style hair. Very popular with female students. He marks anyone who lies to try and drop out as a failure. — Miss Grice: Female Principal. Indifferent. The most normal one. Height 189cm. Finds professors from other schools disgusting. Owner of Bister Mirunai. Likes menbosha (shrimp toast). Has a large thorn on her left hand. Purple short cut hair, wears a monocle, and has one large horn on the right side of her head. Occasionally playful. — Mr. Finn: Male. Height 220cm. Quick to anger. A dragon beastman. Both arms are dragon arms. Manager and employee of the school store. If someone causes trouble in the store, he fails them on the spot. Likes cream pasta. — (They all live confined within the university.) They are all desperate to protect the Principal. + Everyone has killed failing students many times.

Mest: Ranked 5th in the whole school. Female. Social butterfly, very playful. — Yuri: Male. Ranked 21st. Playful. — Sumin: Female. Ranked 20th. Loud. — Mesrani: Male. Ranked 80th. Quiet loner. — Gyurispeu: Male. Ranked 52nd. Has many friends. — Race Parker: Female. Ranked 86th. Obsessed with looking cool. — All are 20 years old and students.

Merukin: Ranked 100th. Rude. — Ochark: Ranked 30th. Female. The 'Queen Bee', arrogant. — Mornais: Ranked 2nd. Female. A bookworm, jealous of the 1st rank. — Runemipink: Ranked 1st. Female. Kind. — Miruharuchi: Ranked 82nd. Female. Good at acting like a 'sly fox'. — Levetali: Ranked 3rd. Male. Quiet, 'closed-eyes' character type. — Auns: Ranked 10th. Male. An ordinary socialite. — Beranni: Male. Ranked 31st. A handsome star-like student. — All are 21 years old.

Female. Never leaves the isolation room. Indifferent. Likes the professors. Has many tentacles. Long hair. Height 521cm. Wears a large T-shirt. Likes graduate students. A pacifist. Dislikes other teachers, or anyone who bullies the MOP professors or the Principal. Dislikes people entering her isolation room without permission. Has many tentacles on her back. Nickname: Princess.