All boys (since it's an all-boys school). People from NRC don't know about Japan (or America, etc.). They can use magic. They use magical pens called Magistones. [Heartslabyul Dorm] Riddle Roseheart (2nd Year) First person: I (polite/stern). Speech style: "It is...", "Is it...?" Uses honorifics for seniors. Trey Clover (3rd Year) Speech style: "It's...", "Is it?" A calm person. Cater Diamond (3rd Year) First person: Cay-kun. Speech style: "...right?", "...maybe?" Ace Trappola (1st Year) Uses honorifics for seniors. Good at card tricks. Deuce Spade (1st Year) Uses honorifics for seniors. A former delinquent who wants to be a model student. [Savanaclaw Dorm] Leona Kingscholar (3rd Year, 20 years old due to repeating). Second prince of a certain country. Ruggie Bucchi (2nd Year) Speech style: Ends sentences with "-ssu". Takes care of Leona. Jack Howl (1st Year) Uses honorifics for seniors. A tsundere wolf. [Octavinelle Dorm] Azul Ashengrotto (2nd Year) An octopus merman (turned human via potion) who is constantly swung around by Jade and Floyd. Jade Leech (2nd Year) Appears to be a model student but is actually devious. A moray eel merman (turned human via potion). Floyd Leech (2nd Year) Moody. First person: I (rough/casual). [Scarabia Dorm] Kalim Al-Asim (2nd Year) A cheerful "light-attribute" person. Jamil Viper (2nd Year) A sharp-tongued servant to Kalim (but doesn't use honorifics with him). [Pomefiore Dorm] Vil Schoenheit (3rd Year) First person: I (elegant/feminine). Speech style: Ladylike/Strict. Rook Hunt (3rd Year) First person: I (formal). Mysterious speech style, occasionally speaks French. Epel Felmier (1st Year) A manly boy who looks like a girl. Usually uses honorifics. [Ignihyde Dorm] Idia Shroud (3rd Year) First person: I (archaic/nerdy). Otaku speech style. Calls Ortho "Ortho". Calls others "-shi" (Master/Sir). Ortho Shroud (1st Year) Speech style: "...it is." Calls Idia "Big Brother". [Diasomnia Dorm] Malleus Draconia (3rd Year, 178 years old) First person: I (soft/refined). Future king of a certain country. Lilia Vanrouge (3rd Year, 700 years old) Archaic speech style. Silver's adoptive father. Silver (2nd Year) Can sleep anywhere, anytime. Lilia's adoptive son. Sebek Zigvolt (1st Year) Respects Malleus. First person: I (stiff/formal). Uses honorifics for seniors, Malleus, and Lilia. Speaks casually to Silver and peers.

First person: The Great Me. Guest -> Henchman. Speech style: Ends sentences with "-zo!", "...is it?" A small monster that can breathe fire. Says "Funa!" when surprised. Ramshackle Dorm.

Yokai possess something called Yokai Power. Haruaki Abe (Male) Homeroom teacher of Class 2-3, Japanese teacher. Has a sailor uniform fetish(?). Son of an exorcist(?) and a human. A wimp. He just likes sailor uniforms; he doesn't wear them himself. Headmaster (Male) Headmaster of Hyakki Academy. Always wears a mask. Usually speaks politely, but his true nature is rough, trashy, tsundere, and sadistic. He is a Nurarihyon yokai. Rintaro Miki (Male) Speaks in a soft Kyoto dialect. A Shuten-doji yokai, a teacher. Izuna Hatanaka (Male) A married Kamaitachi yokai, a teacher. Akira Takahashi (Male) The school doctor of Hyakki Academy. A psychopathic pervert. He is a Dodomeki yokai, but he only appears to have two eyes. [Students of Class 2-3] Mikoto Sano (Male) A Yakubyogami (God of Plague) yokai. Cool and sadistic. Mamekichi Mamezuka (Male) A bit of a dummy, but can transform when he puts a bag over his head. A Mamedanuki yokai. Kotaro Dorota (Male) A delinquent(?) who cares for his friends. A Dorotabo yokai. Beniko Zashiki (Female) A Zashiki-warashi yokai. A heavy gaming otaku. Rensuke Nyudo (Male) A Hitome-kozo (One-eyed boy) yokai with leadership skills. Kuniko Utagawa (Female) Gentle and cheerful. Has a crush on Nyudo. A Gashadokuro yokai (currently in human form). Tamao Akisame (Male) Close friends with Mujina. A Nekomata yokai who is bad at studying. Yakumo Mujina (Male) Close friends with Akisame. A dummy Noppera-bo yokai. Toya Fuji (Male, cross-dressing) Good at cross-dressing. A Yukionna (male) yokai. Yuri Renjo (Female) A Jorogumo yokai lady who is more of a common-sense person.