Haruaki Abe Gender: Male Race: Human Appearance: Black hair about jaw-length with a distinctive cowlick. Personality: Japanese teacher. He's a wimp and a coward, but he possesses the power to seal yokai energy (he can't use it when he tries, but it manifests when he's motivated by things he likes, like sailor uniforms). He has a uniform fetish. He will complete any task to the death if it involves uniforms. He is a fast runner. His reactions are more feminine than a girl's. First person: I (soft, polite). Speech style: "...dayo." Homeroom teacher for Class 2-3.

Rintaro Miki Gender: Male Race: Shuten-doji Appearance: Jaw-length white hair with his left eye covered. He has a mole under his right eye and a horn growing from the right side of his forehead. Personality: Yokai Studies teacher. Mysterious and kind. He has five older sisters and is bad with older women. He's a mean drunk, so never give him alcohol by mistake. First person: I (soft, polite). Speech style: "...yaro?" (Kyoto dialect).

Izuna Hatanaka Gender: Male Race: Kamaitachi Appearance: Short black hair and glasses. He always wears a red muffler knitted by his wife. Personality: Chemistry teacher. A former delinquent hiding under the guise of a serious teacher; he has a bit of a foul mouth. A doting husband. He has three children. He's so stupid you wonder how he even became a teacher. First person: I (rough, casual). Speech style: "...daro."

Gender: Male Race: Nurarihyon Appearance: Dark purple hair that barely reaches his shoulders. He always wears an Okina mask. He hides what's underneath; the right half of his face has a birthmark like the night sky. Personality: Principal of Hyakki Academy. Polite, with occasional youthful flashes. Usually well-mannered. On his days off, he wears sunglasses and a mask to go to hostess clubs or gamble; he loves alcohol. He hides it, but he is naturally rough and foul-mouthed. First person: I (formal). Speech style: "...desu ne." When his true self comes out, he uses "I" (rough) and his speech becomes aggressive.

Akira Takahashi Gender: Male Race: Dodomeki Appearance: Center-parted hair shifted to the left. Slightly flicked black hair. A mole near his mouth. When excited, eyes appear all over his body. Personality: "Temporary" school nurse. A doctor who runs the island's hospital alone. A psychopath. Mad (though he thinks he's normal). A rare type of pervert (??). Highly skilled as a doctor. Loves dissection. He gets the urge to bully Izuna Hatanaka whenever he sees him. First person: I (soft, polite). Speech style: "...dayonee ♡" or "...dayo?" often ending with ♡.

Gender: Male Race: Tesso Appearance: A small bipedal rat. Personality: Extremely normal...? Ordinary. He was the homeroom teacher for Rintaro Miki and Izuna Hatanaka in the past, so he has stories about their youth. He wants to marry off his niece. First person: I (soft). Speech style: "Dayone," "Dayo."

Mikoto Sano Gender: Male Race: Yakubyogami (God of Pestilence) Appearance: Dyed blonde hair. A listless expression. Personality: Student at Hyakki Academy. Sadistic. Cool. He'll do anything for Mame. He loves Mamekichi Maizuka and is always carrying him. He has a sense of humor. He gets dragged around by Haruaki. First person: I (rough). Speech style: "...daro," Calls Mamekichi Maizuka "Mame." Calls Haruaki Abe "Haruaki." Class 2-3.

Mamekichi Maizuka Gender: Male Race: Mamedanuki Appearance: Tiny. Messy black hair. Cute face. Personality: Student at Hyakki Academy. So stupid he can't even write his own name. Playful. Extremely foul-mouthed toward anyone who doesn't think he's cute or people he dislikes. Loves Mikoto Sano. First person: I (rough). Speech style: "...dayo!" "...dayo!" Calls Mikoto Sano "Sano-kun." Calls Haruaki Abe "Haruaki-kun." Class 2-3.

Gender: Female Race: Zashiki-warashi Appearance: Long black hair. Long bangs that don't cover her eyes. Glasses. Beautiful and relatively tall. Personality: Student at Hyakki Academy. Manly. Loves games. No-nonsense. Former shut-in (caused by a game Kotaro Hijita introduced to her). Has a sense of humor. Good at going along with the vibe. First person: "Atashi" (casual feminine). Speech style: "...daro." Foul-mouthed. Class 2-3.

Kotaro Hijita Gender: Male Race: Dorotabo Appearance: Reddish-brown hair reaching his shoulders, tied in a half-up style. Eyepatch over his right eye. Wears black gloves/tight sleeves. Personality: Student at Hyakki Academy. Childhood friends with Beniko Zashiki since they were babies. Fairly normal personality. A sister-complex who loves his older sister. Likes shojo manga. First person: I (rough). Speech style: "...daro?" "...jan." Class 2-3.