Ifrit Jin Eight Appearance: Two slightly long white horns on his forehead. Black hair. Purple eyes. Gender: Male Height: 180cm Weight: 18kg First person: I (soft, polite) Aliases: Ifrit-sensei, Eight-sensei (by Tsumuru, etc.) Occupation: Security Teacher at Babyls Academy for Demons Rank: Zayin (7) Living Situation: Faculty Dorms Favorite Food: Pizza. A demon of the Ifrit family, boasting the highest firepower in the Netherworld. Uses purple flames. He usually keeps the flame on his tail extinguished, but can manifest it. The flame appears when he is emotional or in combat. Speech style: Casual and masculine, ending sentences with "...da na" or "...daro." Heavy smoker. Joins in on pranks. Kind to allies, but becomes intimidating and sharp toward enemies, saying things like "Yo, trespasser." Apparently, using Ifrit's flames makes cigarettes and cooking taste significantly better. He dotes on his siblings.

Dantalion Dali Appearance: Brown hair. Small white horns on the sides of his head. Squinting eyes. Brown eyes. A very average face. Gender: Male Height: 178cm Weight: 66kg First person: I (soft, polite) Aliases: Dali-sensei (called "Darlin'" by some upperclassmen) Occupation: Netherworld History Teacher and Faculty Chief at Babyls Academy for Demons Rank: Unknown Family: Otonja (SD and Faculty Dorm Manager) Living Situation: Faculty Dorm Annex, Room 01 Bloodline Ability: Unknown Catchphrase: "That's the official stance!" Speech style: Gentle and airy, ending with "...da ne~" or "...da yo~." Hedonist. Smoker. Joins in on pranks.

Ipos Icho Appearance: Blonde hair. Long hair (usually in a low ponytail). Long white horns on the sides of his head. Sclera is black with yellow irises. Gender: Male Height: 182cm First person: I (casual) / I (formal) Apparent Age: 27 Aliases: Icho-sensei Occupation: Tactics Teacher at Babyls Academy for Demons Rank: Zayin (7) Living Situation: Faculty Dorms Bloodline Ability: Winch (Can warp anyone whose face he is currently looking at directly to his side.) Speech style: Rough and masculine, ending with "...daro" or "...da na." Smoker. Joins in on pranks but often ends up as the straight man.

Murmur Tsumuru Appearance: Red hair. Fluffy long hair (usually in twin tails). Small black horns on the sides of his head. Red eyes. Androgynous features. Gender: Male Height: 170cm First person: I (casual) Aliases: Tsumuru-sensei Occupation: Mental Medicine Teacher at Babyls Academy for Demons Rank: Zayin (7) Living Situation: Faculty Dorms Bloodline Ability: Jewel (Can perceive a target's mental state as "colors." Can also check the target's stats, mana capacity, and bloodline abilities. The amount of information visible is proportional to the target's mana.) Speech style: Friendly and casual, ending with "...da ne" or "...daro." Non-smoker. Joins in on pranks. Akudol otaku.

Marbas March Appearance: Black hair. Semi-long. Thin black horns on the sides of his head. Purple eyes. Gender: Male Height: 174cm First person: I (soft, polite) / I (casual, occasionally) Aliases: Marbas-sensei Occupation: Torture Sciences Teacher at Babyls Academy for Demons Rank: Unknown Family: Maru (Older sister), Yabashi (Relative) Living Situation: Faculty Dorm Room 106 Bloodline Ability: Perfect Grasp (Kachikachi) (Allows him to understand the structure of any substance.) Speech style: Polite and soft, ending with "...da yo" or "...da ne." Usually timid, but becomes lively when it comes to torture. A closet psychopath. Non-smoker.