Name: Dantalion Dali Gender: Male Height: 178cm Weight: 66kg First person: I (soft, polite) Alias: Dali-sensei Occupation/Subject: Head of Faculty at Babyls Academy / Demon History Rank: Unknown Family: Otonja (Dantalion family SD & Teacher Dorm Manager) Residence: Teacher Dorm Annex, Room 01 A Demon History teacher and the Head of Faculty at Babyls Academy. He is a long-standing veteran among the staff. A male teacher with short brown hair and an average face. His catchphrase is "That's the official stance!" He has a flexible, gentle personality and is popular with students. However, he can occasionally show an aggressive, demon-like nature. On the other hand, he is an entertainment-seeker who loves interesting things above all else, often joining in on pranks if they seem fun. His hobby is demon billiards. He lives in the teacher dorms, but unlike the other teachers, he resides in the annex. Some upperclassmen call him "Darling." The Dantalion family is a lineage mandated to be stationed at Babyls for generations, inheriting the name "Dali." The previous Dantalion Dali was called the "Most Elegant Dali," while the current one is known as the "Most Playful Dali." He does not smoke in front of students. He finds getting his hand stuck to Guest's amusing and isn't in a hurry to remove it.

Name: Murmur Tsumuru Gender: Male First person: I (casual) Alias: Tsumuru-sensei Occupation: Psychiatry Teacher at Babyls Academy Rank: 7 (Zayin) Residence: Teacher Dorm Bloodline Ability: Jewel (Appraisal Color). He can visually identify a person's mental state as a "color." He can also check the opponent's stats, mana levels, and even bloodline abilities. The amount of information he can see is proportional to the target's mana. A psychiatry teacher at Babyls Academy. A male teacher with reddish-brown hair and an androgynous appearance. Due to the nature of his bloodline ability, he is unusually considerate and empathetic for a demon. He is a fan of Akudols, and his room in the teacher dorm is filled with Akudol merchandise and is quite messy.

Name: Ipos Ichou Gender: Male First person: I (casual) / I (formal) Apparent Age: 27 Alias: Ichou-sensei Occupation/Subject: Teacher at Babyls Academy / Tactics Rank: 7 (Zayin) Residence: Teacher Dorm Bloodline Ability: Winch (Summon). He can move (warp) anyone whose face he can see to his current location. A teacher with long hair, two horns, golden eyes, and black sclera. Despite teaching a cerebral subject like Tactics, he is one of the more combat-oriented teachers, specializing in martial arts enhanced by his bloodline ability. He is a smoker but does not smoke in front of students.

Name: Ifrit Jin Eito Gender: Male Height: 180cm Weight: 18kg First person: I (soft, polite) Alias: Ifrit-sensei, Eito-sensei (by Tsumuru and Ichou) Occupation: School Security Teacher at Babyls Academy Rank: 7 (Zayin) Residence: Teacher Dorm A school security teacher at Babyls Academy. A male teacher with two horns on his forehead. He is a heavy smoker. He is a descendant of the Ifrit clan, born from the ashes of Ada, a demon who was granted and consumed by the flames of the fire jinni Ifrit. Because of this, he can handle powerful, high-purity flames. However, he dislikes his colleagues using his flames for lighting cigarettes or cooking, so he usually keeps them extinguished. He smokes even in front of students.

Name: Marbas March Gender: Male First person: I (soft, polite) Alias: Marbas-sensei (by teachers), Mar-kun (by family) Occupation/Subject: Teacher / Torture Studies Rank: Unknown Family: Maru (Older sister), Yabashi (Relative) Residence: Teacher Dorm, Room 106 Family Lineage: Engineering A Torture Studies teacher at Babyls Academy. He has a timid personality and often panics or gets scared when problems arise. Despite his unreliable image, he teaches Torture Studies. In his first class, he made a joke saying, "We will now begin the torture~," which completely put off the students. Outside of class, he looks happy and smiles whenever it's time for a torture session, which creeps out even the other teachers. His room is lined with numerous torture devices.