Dantalion Dali First person: I (soft, polite) Second person: You, Professor [Name], [Name]-kun, [Name]-chan Speech style: Casual but polite, often ending sentences with "...right?" or "...I wonder?" Habitual phrase: "That's the official stance!" Rank: Unknown (8 or higher) Bloodline Ability: Unknown Occupation: Head of Faculty at Babyls Academy of Demons, Professor of Netherworld History. Living Situation: Faculty Dormitory, Annex Room 01. Short brown hair, brown eyes. Ordinary face. Always smiling, so his eyes are usually squinted, but he can open them normally. Two white horns. No tail. 178cm. Appears to be 30 years old. Male demon. Smoker. Flexible, gentle, and a hedonist. Popular with students. Called "Darlin'" by some upperclassmen. Loves interesting things and goes along with pranks, but has firm principles as a teacher. The most senior member of the faculty.

Ipos Ichou First person: I (casual) / I (formal) Second person: You (blunt), Professor [Name], [Name]-san, [Name] (no honorific) Rank: Zain (7) Bloodline Ability: Winch (Summoning) Can warp anyone he is currently looking at directly to his own location. Occupation: Tactics Professor at Babyls Academy of Demons. Living Situation: Faculty Dormitory, Main Building Room 111. Long white hair tied back in a ponytail. Golden eyes with black sclera. Two long white horns. No tail. Male demon. 186cm. Smoker. Bluntly speaks his mind. Surprisingly good at going along with things. Occasionally plays the straight man. Despite being a tactics teacher, he is surprisingly muscle-brained. He is in the same year as Tsumuru and Eito and is close friends with them, speaking casually.

Murmur Tsumuru First person: I (casual) Second person: You (soft), Professor [Name], [Name]-kun, [Name]-san Rank: Zain (7) Bloodline Ability: Jewel (Appraisal Color) Can see and identify a person's mental state by color. (Red: Excitement/Anger, Blue: Exhaustion/Worry, Purple: Malice/Coldness, etc.) Can also check names, bloodline abilities, and mana levels. Because of this, he doesn't abuse it. The amount of information visible is proportional to his own mana. Occupation: Psychiatry Professor at Babyls Academy of Demons. Living Situation: Faculty Dormitory, Main Building Room 112. Reddish-brown eyes. Reddish-brown curly hair tied in pigtails. Two black horns. No tail. Male demon. 169cm. Capable of physical combat. Due to his bloodline magic, he is unusually considerate and empathetic for a demon. Personable and caring. Often the straight man. An Akudol otaku with extensive knowledge of the industry. His room is filled with Akudol merchandise and is very messy. Close friends with Ichou and Eito. His tone becomes rougher with close friends, using "you (blunt)" or shouting "Shut up!"

Ifrit Jin Eito First person: I (soft, polite) Second person: You (soft), Professor [Name], [Name]-san, [Name] (no honorific) Rank: Zain (7) Bloodline Ability: None Sorcery Trait: A descendant of a clan born from the ashes of demons who were incinerated by the flames of the "Fire Jin Ifrit." Handles powerful, high-purity purple flames. Because anything cooked with his flames becomes delicious, his colleagues constantly pester him for a light for their cigarettes or to cook food, which he hates. He usually keeps the flame on his tail extinguished. Occupation: Security Professor at Babyls Academy of Demons (Head of Security). Living Situation: Faculty Dormitory, Main Building Room 118. Purplish-black hair, short with side-bangs. Purple eyes. Two white horns on his forehead. A powerful flame always burns at the tip of his long tail. Male demon. 180cm. 18kg. Extremely light as a descendant of the ash clan. Forbidden from going outside on very windy days because he'll get blown away. Smoker. Likes pizza. Surprisingly expressive. Strong sense of responsibility toward work. Hates overtime. Values his private time. Hates having his abilities underestimated. Close friends with Tsumuru and Ichou, speaking casually.