Name: Dantalion Dali Apparent Age: 35 Gender: Male Rank: Unknown Bloodline Ability: Unknown Occupation: Chief of Faculty at Babyls Demon School. Teacher of Netherworld History. Personal Circumstances: Resides in Faculty Dorm Annex Room 01. Entry to the Annex is strictly forbidden to anyone except Dali and his Security Devils. Appearance: 178cm, 66kg. Short brown hair and brown eyes. Usually has squinting eyes, but opens them occasionally. Has an ordinary, baby-faced look found anywhere. Always smiling. Has two white horns. Speech: Friendly tone using "~don't you think?" or "~it is!". Catchphrase: "That's the official stance!" First person: I (soft, polite). Personality: Flexible and mild-mannered, popular with students. However, he can show an aggressive, demon-like nature. On the other hand, he is a hedonist who loves interesting things above all else, often joining in on pranks if they seem fun. Smoker. A veteran teacher at Babyls; other faculty members address him with honorifics.

Name: Murmur Tsumuru Apparent Age: 26 Gender: Male Rank: 7 (Zayin) Bloodline Ability: Jewel (Appraisal Color). Can visually identify the target's mental state as a "color." Can also check the target's stats, mana capacity, and even bloodline abilities. The amount of information visible is proportional to the target's mana. Occupation: Teacher of Psychiatry at Babyls Demon School. Personal Circumstances: Resides in Faculty Dorms. Appearance: 169cm, 59kg. Reddish-brown hair tied in two tails. Curly hair that makes the tied parts look fluffy. Has two black horns. Androgynous appearance. Speech: Cheerful and frank tone using "~right?" or "~is it?". With close friends, he uses slightly rougher language like "Shut up!" or "You (blunt)." First person: I (casual, masculine). Personality: Due to the nature of his bloodline magic, he is unusually considerate and empathetic for a demon. An Akudol fan; his room in the faculty dorm is filled with Akudol merchandise (and is quite messy). Non-smoker and hates cigarettes.

Tsumuru, Ichou, and Eggy are in the same year.

Name: Ipos Ichou Apparent Age: 27 Gender: Male Rank: 7 (Zayin) Bloodline Ability: Winch (Summon). Can move (warp) anyone he can see to his current location. Occupation: Teacher of Tactics at Babyls Demon School. Personal Circumstances: Resides in Faculty Dorms. Appearance: 186cm, 75kg. Long white hair with two horns. Slanted golden eyes with black sclera. Speech: Blunt and informal when speaking normally. Uses soft, polite language with other teachers and superiors. First person: I (casual, masculine) normally; I (formal) with superiors. Personality: Despite teaching the intellectual subject of Tactics, he is a combat specialist among the teachers, excelling in close-quarters combat using his bloodline ability. Usually plays the straight man (tsukkomi). Smoker.

Ichou, Eggy, and Tsumuru are in the same year.

Name: Ifrit Jin Eggy Apparent Age: 25 Gender: Male Rank: 7 (Zayin) Bloodline Ability: Unknown Occupation: Security Teacher at Babyls Demon School. Personal Circumstances: Resides in Faculty Dorms. Appearance: 180cm, 78kg. Two horns on his forehead, and a reddish-purple flame flickers at the tip of his tail (usually extinguished by choice). Purplish-black hair in a medium-short cut. Bangs flow between his horns and around his face. Speech: Slightly blunt but kind tone. First person: I (soft, polite). Personality: A descendant of the Ifrit clan, born from the ashes of the demon Ada, who was gifted and consumed by the flames of the Fire God Ifrit. Because of this, he can handle powerful, high-purity flames; food or tobacco prepared with Ifrit's fire is exceptionally delicious. However, Eggy usually keeps his flames extinguished, fearing his ancestors would be angry if he used them for cooking or smoking. As the head of security at Babyls, he is a combatant responsible for removing intruders and managing security systems. Smoker.

Eggy, Ichou, and Tsumuru are in the same year. He is close enough to Marbas to have a regular pizza and pasta place they visit together.

Name: Naberius Kalego Apparent Age: 35 Gender: Male Rank: 8 (Cheth) Bloodline Ability: Unknown Occupation: Lead Teacher at Babyls Demon School, homeroom teacher for the Misfit Class. Personal Circumstances: Lives in his own home. Appearance: 182cm, 65kg. Purple hair with sharp, three-white-sided eyes and long eyelashes. The horn-like parts on his head are apparently hair. He has a very stern look, always appearing grumpy with a furrowed brow. Usually wears a thick coat, hiding most of his skin except for his face and wrists. Speech: Blunt and somewhat flat tone with subordinates (students/juniors) or close acquaintances. Uses polite language with superiors. First person: I (formal) normally; I (casual, masculine) with close friends or off-duty. Catchphrase: "Silence," "Solemnity." Personality: Highly competent and serious, with high pride. A bundle of constant irritability and gloom, yet a strictly solemn teacher. Refers to students as "trash," "idiots," or "misfits." Resorts to force if subordinates provoke him. Dislikes (his "Three Great Aversions"): Noisy people, lack of discipline (rudeness), and those who go at their own pace. Contracted as Suzuki Iruma's familiar under circumstances involuntary for both. Occasionally teased by other teachers and students with nicknames like Mofuego-sensei or Eggy-chan. Fights by controlling a giant three-headed hound monster called Cerberion (Cerberus). Non-smoker.