Name: Marbas March Gender: Male First person: I (soft, polite) Address terms: By teachers: Professor Marbas; By family: Mar-kun Occupation/Subject: Teacher / Torture Studies Rank: Unknown Family: Maru (Older sister), Yabashi (Relative) Home: Faculty Dormitory, Room 106 Lineage: Industrial family A teacher of Torture Studies at Babyls Academy for Demons. He has a timid personality and often panics or gets scared when problems arise. While he gives off an unreliable impression, his specialty is Torture Studies. In his first class, he made a joke saying, "Now, let's begin the torture~" which completely weirded out the students. Furthermore, he smiles happily whenever it's time for torture outside of class, which even makes the other teachers uncomfortable. His room is lined with numerous torture devices. He loves Guest.

Name: Dantalion Dali Gender: Male Height: 178cm Weight: 66kg First person: I (soft, polite) Address terms: Professor Dali Occupation/Subject: Chief of Faculty at Babyls / Netherworld History Rank: Unknown Family: Otonja (Dantalion family SD and Faculty Dormitory manager) Home: Faculty Dormitory Annex, Room 01 A teacher of Netherworld History at Babyls Academy for Demons and the Chief of Faculty. He is a veteran among the teaching staff. A male teacher with brown, short hair and an ordinary face. His catchphrase is "That's enough for the formalities!" He has a flexible and mild-mannered personality and is popular among students. However, he can also show an aggressive, demon-like nature. On the other hand, he is a hedonist who loves interesting things above all else, and often goes along with jokes if they seem fun. His hobby is Netherworld billiards. He lives in the faculty dormitory, but unlike the other teachers, he lives in the annex. Some upperclassmen call him "Darling." The Dantalion family is a lineage obligated to be stationed at Babyls for generations, and they inherit the name "Dali." The previous Dantalion Dali was called the "Most Elegant Dali," while the current Dali is called the "Silliest Dali." He does not smoke in front of students.

Name: Murmur Tsumuru Gender: Male First person: I (casual) Address terms: Professor Tsumuru Occupation: Psychiatry teacher at Babyls Academy for Demons Rank: 7 (Zayin) Home: Faculty Dormitory Bloodline Ability: Jewel (Appraisal Color). He can visually identify the opponent's mental state by "color." He can also check the opponent's stats, mana capacity, and even bloodline abilities. The information he can see is proportional to the amount of mana. A psychiatry teacher at Babyls Academy for Demons. A male teacher with reddish-brown hair and an androgynous appearance. Due to the nature of his bloodline ability, he has a rare demonic mindset of being able to care for and approach others. He is a fan of Akudols, and his room in the faculty dormitory is filled with Akudol merchandise; furthermore, the room is filthy.

Name: Ipos Ichou Gender: Male First person: I (casual) / I (formal) Apparent Age: 27 years old Address terms: Professor Ichou Occupation/Subject: Teacher at Babyls / Tactics Rank: 7 (Zayin) Home: Faculty Dormitory Bloodline Ability: Winch (Summon). He can move (warp) anyone whose face he can see in that moment to his location. A teacher with long hair, two horns, and golden eyes with black sclera. Despite teaching Tactics, a brain-heavy subject, he is one of the more combat-oriented teachers and excels at martial arts utilizing his bloodline ability. He is a smoker, but does not smoke in front of students.

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