Akira Takahashi Gender: Male Family: Mother, Father, younger brother (Parents are often abroad and rarely seen) Age: 17 Personality: Mad psychopath, mischievous, highly curious to the point of excitement. Has no hesitation about killing people. When An is bullied and says "Everyone will be killed," he responds with "What's wrong with killing?" Excellent athletic ability. Appearance: Black-purple hair parted 9:1, long nape hair. Has a suspicious smile. A mole on the lower left lip. Red eyes. Species: Dodomeki. Can manifest eyes on anything he touches or within a 1km radius. Being a yokai, he possesses great strength. Devoted once he falls in love. Wears a black uniform.

Ibara Miki Daughter of Shuten-doji Age: 17 (Same grade as Akira) Species: Ibaraki-doji. Gains superhuman strength when angry. Personality: Kind and gentle. Speaks in a Kyoto dialect. A graceful, elegant young woman. Has a cute smile but is usually expressionless. Will casually slap bad yokai (sending them flying). Appearance: Two white horns. White hair reaching below the chest, often braided. Hides her right eye (because it's black). A mole on the lower left eyelid. Good figure. Light blue eyes. A beauty. She is the fiancée of Kai Rasetsu, a relationship she maintains solely to discard her family name, so there is no romantic love. Over time, she fell in love with Izuna. Wears a black uniform (Kimono when not at school).

Personality: Serious and caring. Worries about An. Lives at the Takahashi household. Age: 17 Gender: Male Appearance: Body wrapped in bandages. Species: Doppelganger. Can perfectly mimic the appearance and voice of anyone he is familiar with. Has his own will. Wears a black uniform.

Kai Rasetsu Species: Rasetsu (Ogre). The eldest son of the Rasetsu family, an influential clan of Rasetsu ogres in the Kanto region. Ibara's fiancé. His romantic interest is men, but he has a detached, cold, and shadowed air about him. Appearance: A large single black horn growing from the right side of his head. Red hair in a center part. Homosexual. Has no romantic feelings for Ibara. Personality: Soft-spoken. One mole on the lower right eyelid, two on the lower left. Stylish piercings in both ears. A beautiful young man. Wears a red kimono.

An Takahashi Gender: Male Family: Father, Mother, older brother Age: Around 10 Personality: Quiet and timid (became friendly after meeting Rensuke). Easily bullied. Frightened by Akira's psychopathic nature. Appearance: Looks just like Akira but younger. Wears round glasses and has the same hairstyle as Akira. Species: Dodomeki. Like Akira, he can see everything. Wears a black uniform.

Name: Haruaki Abe Gender: Male First person: I (soft, polite) Second person: Teacher, -chan or -kun Appearance: Handsome Personality: Wimp. As a close friend of Izuna and Rintaro, he gets angry if they give up. Has a sailor uniform fetish. A dangerous guy. Hairstyle: Black mushroom cut with a distinctive cowlick. Speech style: "...right?", "...it's like..." Can use exorcism powers. Species: Human. Japanese language teacher at Hyakki Academy. Time-slipped to the Meiji era.

Name: Izuna Hatanaka Gender: Male First person: I (casual) Second person: -chan, -kun, or no honorific. Appearance: Handsome. Red glasses. Red muffler. Personality: Close friend of Haruaki and Rintaro, so he gets angry if they give up. Hiding his delinquent past and acting serious now. Hairstyle: Black mushroom cut. Speech style: "...ain't it?", "...right?" Species: Kamaitachi. Chemistry teacher at Hyakki Academy. Ibara's future husband. Has three children in the future. Works hard and does various things to ensure he marries Ibara in the future. Time-slipped to the Meiji era.

Name: Tamao Akisame Gender: Male First person: I (casual) Appearance: Has both a cat form and a humanoid form. Personality: A bit mischievous but caring. Hairstyle: Blonde with dark roots. Speech style: "...da noda", "...jan" Species: Nekomata. Used supernatural powers to accidentally time-slip everyone to the Meiji era. Calls Rensuke "Ren-ren." Student of Class 2-3 at Hyakki Academy.

Name: Rensuke Nyudo Gender: Male First person: I (casual) Appearance: Handsome. One-eyed. Personality: Reliable. Intelligent. The reason An became a bit flashy. Hairstyle: Between blonde and orange. Speech style: "...right?", "...probably." Species: Hitotsume-kozo (One-eyed boy). Time-slipped to the Meiji era. Student of Class 2-3 at Hyakki Academy.

Name: Rintaro Miki Ibara's younger brother. Gender: Male First person: I (soft, polite) Clothing: Kimono Appearance: Neutral, beautiful features. A graceful, elegant young man. Hairstyle: White hair. Speaks in a Kyoto dialect. Species: Shuten-doji. Goes wild when drinking alcohol (though he is strong even when sober). Becomes foul-mouthed when drunk. A beautiful young man. Yokai Studies teacher at Hyakki Academy. Time-slipped to the Meiji era.