Name: Marbas March Apparent Age: 28 Gender: Male Rank: Unknown (7 or higher) Bloodline Ability: Unknown Occupation: Torture Studies Teacher at Babyls Academy of Demons Living Situation: Teacher Dorm Room 106 Appearance: 176cm, 63kg. Black eyes and black semi-long hair with two horns of the same color. His hair is parted in the center, exposing his forehead. He has a plain appearance that both he and others consider unremarkable. Tone: Uses a gentle, seemingly timid polite register, ending sentences with "~desu ne" or "~desu yo." First person: I (soft, polite). When he lets his guard down: I (casual). Other: Despite his plain and timid look, he is the teacher in charge of Torture Studies. Contrary to what one might expect, he doesn't undergo a dramatic personality shift during class; he maintains a perfectly normal attitude. He sometimes cracks jokes like "Now, let's begin the torture~" during the first lesson, which tends to weird out the students. He also looks visibly happy and smiling whenever a situation calls for torture outside of class, which even disturbs the other teachers. He seems kind, but his sense of morality is quite twisted. Non-smoker. He is a younger teacher but is close with Ichou and Tsumuru. He is close enough with Eito to have a favorite pizza and pasta place they visit together.

Name: Ipos Ichou Apparent Age: 27 Gender: Male Rank: 7 (Zayin) Bloodline Ability: Winch (Summon). He can warp anyone whose face he can see directly to his current location. Occupation: Tactics Teacher at Babyls Academy of Demons Living Situation: Teacher Dorms Appearance: 186cm, 75kg. Long white hair with two horns. Slanted golden eyes with black sclera. Tone: Blunt and informal with peers, using "~da na" or "~darou." With other teachers or superiors, he uses a softer polite register like "~deshou" or "~desu yo." First person: I (casual). When speaking to superiors or using polite speech: I (formal). Though he teaches Tactics—a cerebral subject—he is one of the more combat-oriented teachers, specializing in hand-to-hand combat utilizing his bloodline ability. He is generally the "straight man" of the group. Smoker. Ichou, Eito, and Tsumuru are in the same year group.

Name: Murmur Tsumuru Apparent Age: 26 Gender: Male Rank: 7 (Zayin) Bloodline Ability: Jewel (Appraisal Color). He can visually identify a target's mental state as a "color." He can also check a target's stats, mana levels, and even bloodline abilities. The amount of information he can see is proportional to the target's mana. Occupation: Psychiatry Teacher at Babyls Academy of Demons Living Situation: Teacher Dorms Appearance: 169cm, 59kg. Reddish-brown hair tied in two fluffy, curly bunches. Has two black horns. Has an androgynous appearance. Tone: Friendly and energetic, using "~daro!" or "~ka?" With close friends, he becomes more informal and slightly rough, saying things like "Shut up!" or using "you" (blunt). First person: I (casual). Due to the nature of his bloodline magic, he is unusually considerate and empathetic for a demon. He is a huge fan of Akudols (Dem-idols), and his room in the teacher dorms is filled with Akudol merchandise (and is quite messy). Non-smoker; he hates cigarettes. Tsumuru, Ichou, and Eito are in the same year group.

Name: Ifrit Jin Eito Apparent Age: 25 Gender: Male Rank: 7 (Zayin) Bloodline Ability: Unknown Occupation: Security Teacher at Babyls Academy of Demons Living Situation: Teacher Dorms Appearance: 180cm, 18kg. Two horns on his forehead, and a reddish-purple flame flickers at the tip of his tail (though he usually keeps it extinguished). Purplish-black hair in a medium-short cut. His bangs flow between his horns and around his face. Tone: Slightly blunt but kind, using "~da ne" or "~da yo." First person: I (soft, polite). He is a descendant of the Ifrit clan, born from the ashes of the demon Ada, who was granted and consumed by the flames of the Fire Djinn Ifrit. Because of this, he can manipulate powerful, high-purity flames. Food or tobacco lit with Ifrit's fire becomes exceptionally delicious. However, Eito dislikes using his flames for cooking or smoking, fearing it would anger his ancestors, so he usually keeps them out. As the head of security at Babyls, he is a combat specialist responsible for removing intruders and managing security protocols. Smoker. Eito, Ichou, and Tsumuru are in the same year group. He is close enough with Marbas to have a favorite pizza and pasta place they visit together.