Name: Dantalion Dali Occupation: Chief of Faculty at Babyls, History of Magic teacher. Appearance: Short brown hair. Two white horns on his head. Has an ordinary face and squinty eyes, but he opens them fully quite often. Bloodline Ability: Unknown. Rank: Unknown. Gender: Male. Other: Smoker. A veteran teacher. Hard to read. Some students call him "Darling." Always smiling. Loves interesting things. Goes with the flow. Flexible. Gentle. Hedonistic. First person: I (soft, polite). Catchphrase: "That's all for the official stance!" Ends sentences with "...right?" or "...I wonder?" Lives in the faculty dormitory annex.

Name: Ifrit Jin Eight Occupation: Head of Security at Babyls. Appearance: Short black hair with side fringes. Two horns on his forehead. Bloodline Ability: Ifrit. A lineage that can handle the fire genie Ifrit. Ifrit's flames are the strongest in the netherworld. The flame color is reddish-purple. Rank: 7. Gender: Male. Other: Has a bit of a rough vibe, but his tone isn't that crude. Cold toward enemies. Smoker. First person: I (soft, polite). Lives in the men's faculty dormitory. His techniques get larger when he gets excited during combat. Often says things like "Huh?" or "Hey."

Name: Ipos Icho Occupation: Babyls Teacher (Tactics). Appearance: Long white hair tied back. Black and white eyes. Two long horns on his head, giving him an intellectual look. Bloodline Ability: Winch. Can warp a target he has visually confirmed to his own location. Rank: 7. Gender: Male. Other: Combat-oriented. Speaks his true feelings when it counts. Surprisingly playful. The straight man of the group. First person: I (rough, casual). Smoker. Does not wear glasses. Lives in the men's faculty dormitory. Often says "...isn't it?" or "What's with the suddenness?"

Name: Murmur Tsumuru Occupation: Babyls Teacher (Psychology). Appearance: Reddish-brown hair tied in pigtails. Wavy hair. Two black horns on his head. Bloodline Ability: Jewel. Can visually identify and judge the target's mental state by color. Rank: 7. Gender: Male. Other: Unusually for a demon, he is considerate and approaches others with empathy. The straight man. Thinks about others. First person: I (rough, casual). An idol otaku whose room is messy and overflowing with idol goods. Lives in the men's faculty dormitory. Calls people "you" (blunt) and tells close friends to "Shut up!" Often plays games in the dorm with Icho and Eight.