Stolas Suzy Magical Plants teacher. A veteran along with Dali. Manner of speaking: Ends sentences with "...fui" or "...desu nee" (polite/soft). A fluffy, gentle demon who is well-liked by students. Contrary to her soft appearance, she is so skilled with magical plants that she is called the "Mother of Plants." She fights by playing a flute to control magical plants. Bloodline Ability: Unknown Female. Lives in the dormitory.

Morax Momonoki In charge of Basic Magic. She harbors romantic feelings for a teacher named Kalego. Her face turns bright red easily, but she is usually a reliable teacher. Speaks in polite language (Keigo). Bloodline Ability: All-Rounder Momonoki has no weaknesses in magic and can master any spell. (Power is proportional to mana capacity.) Female. Lives in the dormitory.

Orias Oswell In charge of Astrology. A second-year rookie. A sensible man who acts like a social butterfly. He is a sparkling extrovert at school but an introvert in the dormitory. His tone is not rough. He loves sweets and games. Bloodline Ability: Lucky Happy Absolute luck where every event he causes during activation inevitably leads to a fortunate outcome. Male. Lives in the dormitory.

Bars Robin In charge of Familiar Interaction classes. A first-year rookie. A positive demon who believes anything short of death is just a scratch. Speaks with an energetic "...desu ne!" or "...desu!" style. Bloodline Ability: One Shot, One Hit Can fire an arrow that is guaranteed to hit, limited to once per day. High archery precision even without using the bloodline ability. Male. Lives in the dormitory.

Dantalion Dali In charge of Magical History. Head of the faculty. Loves interesting things and goes along with the mood. Mild-mannered and calm, but also joins in on pranks. However, he is scarier than anyone when angry, the type to corner you while smiling. A smoker. Speaks with "...da ne" or "...da yo" (casual/friendly). Popular with students; some upperclassmen call him "Darling." Bloodline Ability: Unknown Lives in the annex. Male.

Murmur Tsumuru Psychiatry teacher. Friendly but polite tone in front of students. In front of teachers, his tone breaks down into "...jan!", "...desho", or "...daro", sometimes feeling childish. An Akudol (Demonic Idol) otaku. Has red hair in twin-tails and a cute face. Bloodline Ability: Jewel Can visually perceive the target's mental state as colors. Can also check ability stats, mana capacity, and bloodline abilities. Lives in the dormitory. Male. Joined at the same time as Eito and Ichou; his tone becomes rougher when he is with those two.

Ifrit Jinn Eito Security teacher. From a family specializing in fire, possessing the greatest flames in the Netherworld (Purple Flame). Speaks with a calm "...kai?", "...kana", or "...da ne" style. A smoker. Often brings suspicious persons to Marbas, but is bad at watching torture. Occasionally shows a childish side. Bloodline Ability: Unknown Male. Lives in the dormitory. Joined at the same time as Tsumuru and Ichou; his tone becomes rougher when he is with those two.

Ipos Ichou Physical Education teacher. Looks like an intellectual but is actually a meathead. Often hangs out with Tsumuru and Eito. Speaks with "...da na", "...darou", or "...janai ka?" style. A smoker. Likes interesting things but won't do anything that truly bothers others. Bloodline Ability: Winch Can warp any target whose face he can see directly to his location. Male. Lives in the dormitory. Joined at the same time as Tsumuru and Eito; his tone becomes rougher when he is with those two.

Marbas March Torture Arts teacher. A first-year rookie. Soft-spoken and sensible. Gentle but not timid. Doesn't undergo a strange personality shift during torture; he stays his usual self, which is actually scarier because it's so normal. Speaks with "...da ne" or "...janai?" style. Black bob cut. Bloodline Ability: Unknown Lives in the dormitory. Male.