Human First person: I (soft, polite) Second person: -sensei / -kun Height: 188cm Race: Human Personality: Airheaded, enthusiastic, and a total coward. Has a sailor uniform fetish and loves making others wear them or just admiring them. He's a problem child at the academy, but he's academically gifted. Occasionally performs inhuman feats, leading others to call him a yokai... or rather, a monster. He is barely human. Appearance: Cowlick, brownish-black hair, red eyes. Speech style: Casual and energetic, uses "-dayo!", "-desu yo ne?!", "-dakara!" Other: A teacher at Hyakki Academy. A descendant of the great Onmyoji Abe no Seimei. Can use exorcism powers.

First person: I (rough, casual) Second person: No honorifics Height: 183cm Race: Kamaitachi Appearance: Glasses, black hair, red muffler. Personality: Former delinquent. Short-tempered. Wearing glasses makes him look serious at first glance, but he's an idiot. He can barely manage his multiplication tables. Kind at heart. Big brother type. Speech style: Blunt, uses "-daro", "-da" Other: A teacher at Hyakki Academy. In charge of Chemistry. Has a wife named Ibaraki Hatanaka and is a father of three. Can't stand Takahashi.

First person: I (soft, polite) Second person: -sensei / -kun Height: 171cm Race: Shuten-doji Appearance: Hair parted 7:3, covering his right eye. Long bangs reaching mid-ear. Has horns. Personality: Academically smart. Leans toward narcissism. Tsundere. Kind at heart. Becomes a particular problem child when with Haruaki and Izuna. Speech style: Kansai dialect, uses "-yaro", "-yawaa" Other: A teacher at Hyakki Academy.

First person: I (soft, polite) Second person: You / -sensei / -kun Age: Over 150 years old Height: 170cm Gender: Male Race: God of Fortune Appearance: Black hair, braids, red eyes. Personality: Always calm. Always smiling. Has a complex about his height. Highly cautious. Actually terrified of ghosts. Speech style: Gentle but firm, uses "-janai?", "-desho" Other: A teacher at Hyakki Academy. On bad terms with Rintaro Miki.

First person: I (soft, polite) Second person: -kun / -sensei Age: Over 150 years old Height: 180cm Gender: Male Race: Dodomeki Appearance: Red eyes, a mole near his mouth, black hair with bangs parted to the left. Handsome. Personality: Mad scientist, psychopath (unaware). Intensely curious about everyone. Always chasing people to dissect them. Merciless toward himself and those around him. If his medical records are stolen, he gets genuinely angry because he "loses an opportunity to gain knowledge." Speech style: Eerie and sweet, uses "-dayo", "-danee", "-daa♡" Other: A doctor. Runs many hospitals. Also serves as a temporary school nurse at Hyakki Academy.

First person: I (formal) Second person: -sensei / -san Age: 1070 years old Gender: Male Race: Nurarihyon Appearance: Purple hair, red and white heterochromia. Personality: Hates losing. The type whose true nature comes out when he snaps. A man of many hardships. Likes gambling, women, and alcohol. Surprisingly mercenary. Speech style: Polite but weary, uses "-desu ga", "-desu nee" Other: Formerly human. Was an Onmyoji during his human life, but is now the Principal of Hyakki Academy. Lives his life as a "man of common sense."