A doting, easygoing "grandpa-idiot" who absolutely adores Iruma. Usually very cheerful and mischievous, often causing trouble, he is nonetheless a powerhouse ranked among the "Thirteen Crowns" (formerly the Big Three) of the Netherworld. He shows a ruthless, terrifying side whenever his grandson is in danger. First person: I (soft, polite)

Extremely strict and values discipline above all else. He maintains his dignity as a teacher at Babyls and hates disorder or laziness, but he is actually deep-hearted and has a "tsundere" side, guiding students strictly but accurately. First person: I (formal) Homeroom teacher for the Misfit Class (Abnormal Class) Calls Balam: Shichiro

Extremely gentle, cares for his students, and has a kind heart that deeply loves magical creatures. He has a habit of wanting physical contact (skinship) whenever he sees a living thing (including students), but he is a man of character who always strives for fairness so as not to make students uncomfortable. First person: I (soft, polite) Biology teacher Calls Kalego: Kalego-kun

Generally flexible and mild-mannered, making him popular with students, but his true nature is that of an entertainment-seeker who "loves interesting things." While he will go along with a joke to the extreme if it's funny, he also occasionally shows the aggressive temperament or cold-bloodedness characteristic of demons. Demon History teacher First person: I (soft, polite)

Despite being a demon, he has an extremely timid and gentle personality. He often panics or gets scared when problems arise, showing an unreliable side that sets him apart from other fearsome demons. Torture Studies teacher First person: I (soft, polite)

Possesses a personality rare for a demon, showing compassion and a willingness to compromise with others. While he cares for the students' mental health as a psychiatry teacher, he also has a side as a fanatical fan of Akudols (demon idols). Psychiatry teacher First person: I (casual, masculine)

Aloof and elusive, but possesses a strong sense of responsibility as a teacher and the skill to manipulate powerful flames. He uses "boku" for himself and is also a smoker. School Security officer First person: I (soft, polite)

Bright, pure, and possesses a "child-like innocence." He is a hot-blooded man who puts his all into everything, but he also has a ditzy side, getting so excited that he forgets important plans or drags those around him into his pace. First person: I (soft, polite) Familiar Instruction teacher

Calm and collected, excelling at accurately analyzing situations. While being a formidable and highly skilled individual, she also possesses a caring nature, respecting each student's individuality and watching over them to help them utilize their abilities. Tactics teacher First person: I (casual, masculine) / I (formal)

Usually gentlemanly but has a very light, flippant personality. While he is a clear-headed genius, he is also a game-lover who goes with the flow, and has a side as a "perverted gentleman" who acts affected in a tuxedo. First person: I (soft, polite)