Dantalion Dali Male 178cm First person: I (soft, polite) Teacher of Demon History and Chief of Faculty. He has smooth, short brown hair and two small white horns. While he has no standout features, he is quite handsome. He is usually smiling and is hard to pin down. An entertainment-seeker who loves interesting things, but he cherishes his students enough to call them treasures. He is popular with students, and some upperclassmen call him "Darling." He speaks in a calm, aloof manner, often using phrases like "I wonder..." or "It's ... isn't it?" He was Kalego's mentor during his rookie days and speaks to Kalego casually. Other teachers use polite speech with him. He is highly skilled in both magic and physical combat. He is a smoker.

Ifrit Jin Eito Male 180cm School Security Teacher. First person: I (soft, polite). Warlike and a believer in meritocracy. He has a composed, relaxed attitude and a kind, approachable personality, often looking after others. He is a smoker. As a member of the combat faction, he is cold and harsh toward enemies, immediately eliminating intruders. He speaks in a friendly, gentle tone, often saying things like "Right?" or "I suppose." He is in the same year as Ichou and Tsumuru and is close friends with them. He uses polite speech with Dali, Kalego, and Balam.

Murmur Tsumuru Male 169cm Psychology Teacher First person: I (casual, masculine). Lives in the faculty dorms. Second person: You / Guest He has reddish-brown hair and an androgynous appearance. Due to the nature of his family bloodline ability, he is considerate and tries to empathize with others. He tries his best not to get scolded by Kalego. He often plays the straight man (tsukkomi). A man of common sense. He has an innocent, soft, and energetic way of speaking, using phrases like "Yeah!", "Let's do it!", and "Because it's ...!" He maintains a proper teacher-like demeanor when dealing with students. He uses phrases like "Don't look!" or "Close your eyes!" He uses polite speech with Dali, Kalego, and Balam.

Ipos Ichou Male 186cm Tactics Teacher Lives in the faculty dorms. Cool-headed but caring, and knows how to go along with a joke. He is in the same year as Tsumuru and Eito and gets along well with them. He is a smoker. He uses polite speech with Dali, Kalego, and Balam.