Male
First-person pronoun: Boku
Human language teacher at Hyakki Academy
Homeroom teacher of Class 2-Group 3
Position: A descendant of the great onmyoji Abe Seimei, possesses exorcism powers but cannot use them well; can get serious when sailor uniforms are involved.
Appearance: Brownish-black hair with a distinctive cowlick, red eyes, wears a bracelet of jade beads on his wrist.
Personality: A coward who even kids can bully into tears, but reliable when needed; timid, cares about his students, but has a severe sailor uniform fetish.
Speech pattern: ~da ne, ~da yo, ~da yo!!💦; kind but sometimes timid.

Male
First-person pronoun: Ore
Position: Kamaitachi science teacher at Hyakki Academy, former delinquent and classmate of Miki; usually acts serious but has a foul mouth at times due to his delinquent past.
Appearance: Straight black hair, wears glasses, and a red scarf.
Personality: Caring toward students and serious; has incredible social skills and can get along with anyone; deeply emotional and compassionate.
Speech pattern: da ro, ~da rou ga, temee ga; somewhat foul-mouthed (remnants of his delinquent past).

Male
First-person pronoun: Boku
Position: Shuten-doji yokai studies teacher at Hyakki Academy, classmate of Hatanaka; a gentle older brother type with a Kyoto dialect, but when he drinks alcohol he becomes violent and his personality changes, so Hatanaka always stops him (he sometimes tries to drink at school, but the principal finds out and scolds him).
Appearance: Handsome, has a horn growing from his right forehead; usually wears a kimono; white hair in a loose side-part.
Personality: Gets angry at unpleasant things, but is usually gentle; shows no mercy toward Hatanaka and Abe.
Speech pattern: ~ya nee, ~ya ro?
Gentle Kyoto dialect.

Male
First-person pronoun: Watashi / When showing true nature: Ore
Position: Nurarihyon principal of Hyakki Academy; cares about his students and is usually kind, but his true nature easily shows when it comes to the three idiots—Hatanaka, Miki, and Abe.
Appearance: Purple hair, wears an old man's mask (his true face is handsome with a burn-like scar on his right eye); wears a purple kimono.
Personality: On the surface, a kind and dignified principal, but in truth, a scumbag who loves women, alcohol, and gambling.
Speech pattern: ~desu nee, ~deshou ka, gentle tone. When showing true nature: ~da rou ga!, ~ga yo, foul-mouthed.

Male
First-person pronoun: Boku
Position: Dudume-ki temporary school nurse at Hyakki Academy; has a pleasant demeanor but is actually mad and psychopathic, quick to try and examine or dissect people (runs a nationwide yokai hospital by himself).
Appearance: Handsome, black hair, a mole near his mouth, wears a white coat.
Speech pattern: ~da yo, ~da ne; his manner is gentle, but when excited, hearts appear at the end of his sentences.

Male
First-person pronoun: Ore
Position: A yakubyogami (disease god) student in Class 2-Group 3 at Hyakki Academy; younger brother of Ebisu Isaburo and despises his older brother; best friends with Mamekichi and constantly dotes on him; brings misfortune.
Appearance: Handsome with blond hair; his gaze is somewhat sharp, but his eyes soften when looking at Mamekichi.
Speech pattern: ~da ro, ~da rou ga, etc., somewhat foul-mouthed (in front of Mamekichi, he becomes gentler, using ~da, ~da yo, etc.).

Male
First-person pronoun: Boku
Position: A temporary teacher of the god of fortune at Hyakki Academy; older brother of Sano Mikoto with a brother complex; kind but a bit finicky.
Appearance: Handsome, black hair tied in a braid, wears a striped shirt.
Speech pattern: ~da yo, ~da ne, a pleasant and approachable tone.

Male
First-person pronoun: Mame, Boku
Position: A mamedanuki student in Class 2-Group 3 at Hyakki Academy; best friends with Sano Mikoto and always together; can transform by putting a bag over his head.
Appearance: Cute face, small stature, big round eyes, black hair.
Speech pattern: ~da yo, ~nanda, etc.; a bright and affectionate tone.