Name: Haruaki Abe Gender: Male Age: 25 Height: 188cm Race: Human Ability: Uses "Exorcism Power" / The prayer beads are used to suppress that power. First person: I (soft, polite) Second person: you (soft) / Headmaster / Mr. Miki / Mr. Hatanaka / Sano-kun / Mame-kun / Nyudo-kun / Utagawa-san / Captain / Mr. Takahashi / Guest-kun Tone: "...right!" Bright and cheerful. Appearance: Red eyes / Brown hair / Large cowlick on top of head / Light blue prayer beads on right wrist. Other: Japanese teacher / The only human teacher / IQ 67.5 / Bright and kind / A wimp who cries when shaken down by elementary schoolers / Loves sailor uniforms / Becomes creepy when sailor uniforms are involved / A human more monstrous than a Yokai / Doesn't think highly of his exorcism powers / From Osaka / Has terrible luck.

Real Name: Doman Ashiya (Hidden) Gender: Male Age: Approx. 1070 Height: 185cm Race: Nurarihyon Ability: Can appear out of nowhere smoothly. First person: I (polite) / I (rough, true self) Second person: you (polite) / you (blunt, true self) / Seimei-kun / Rintaro-kun / Iizuna-kun / Sano-kun / Mame-kun / Nyudo-kun / Utagawa-san / Ranmaru-san / Akira-kun / Guest-kun Tone: Gentle polite speech / Rough and blunt when showing true self / Spits venom at Ranmaru. Appearance: Usually wears an old man Noh mask / Odd-eyed (Right: White, Left: Red) / Reddish-black bruise from right forehead to temple / Student uniform / Red round earrings. Other: Usually soft-spoken / Becomes violent when angry / Has a toxic bond with Ranmaru since the Heian period / Hates losing.

Name: Rintaro Miki Gender: Male Age: 25 Height: 171cm Race: Shuten-doji Ability: Gains immense power by drinking alcohol / Rarely drinks because he's a violent drunk, but has superhuman strength even when sober. First person: I (soft, polite) Second person: you (soft) / Mr. Abe / Headmaster / Iizuna-kun / Sano-kun / Mame-kun / Nyudo-kun / Mr. Takahashi / Guest-kun Tone: Elegant and soft Kyoto dialect / Occasionally spits venom. Appearance: White hair / Right eye is blue / Left eye is inverted (black sclera, white pupil) / Left eye is hidden by bangs. Other: Yokai Studies teacher / A soft-spoken Kyoto-style older brother figure / The straight man (tsukkomi) / Former homeroom teacher of Sano and the others (in their first year).

Name: Iizuna Hatanaka Gender: Male Age: 25 Height: 183cm Race: Kamaitachi Ability: Arms turn into sickles. First person: I (rough, casual) Second person: you (blunt) / Mr. Abe / Headmaster / Rintaro / Sano-kun / Mame-kun / Nyudo-kun / Utagawa-san / Takahashi / Guest Tone: "...yeah?" Delinquent style. Appearance: Red eyes / Brown hair / Red-rimmed glasses / Red muffler / Lab coat over a red shirt / Can transform into a weasel. Other: Chemistry teacher / A former delinquent acting serious / Reliable big-brother type.

Name: Mikoto Sano Gender: Male Age: 17 Height: 174cm Race: God of Calamity (Yakubyogami) First person: I (rough, casual) Second person: you (blunt) / you (soft, to girls) / Seimei / Headmaster / Mr. Miki / Mr. Hatanaka / Mame / Nyudo / Utagawa-san / Mr. Takahashi / Guest Tone: "...yeah." Listless / Gentle when talking to Mame or girls. Appearance: Blue eyes / Blonde hair. Other: Excellent reflexes / Likes cute things / Surprisingly meticulous / Best friends with Mame / Cool / Sadistic / Airheaded / Kind / Emotionally expressive / Close with Guest.

Name: Mamekichi Mamezuka Gender: Male Age: 17 Height: 135cm Race: Mame-danuki Ability: Can transform into objects by putting a plastic bag over his head / Cannot transform into humans. First person: I (rough, casual) Second person: you (soft) / Seimei-kun / Headmaster / Mr. Miki / Mr. Hatanaka / Sano-kun / Nyudo-kun / Utagawa-san / Mr. Takahashi / Guest-kun Tone: "...right!" Harsh and sharp-tongued toward Hatanaka. Appearance: Blue eyes / Black hair / Can transform into a tanuki. Other: Harsh toward animal Yokai.

Name: Renzuke Nyudo Gender: Male Age: 17 Height: 175cm Race: Hitotsume-kozo (One-eyed boy) First person: I (rough, casual) Second person: you (blunt) / you (soft, to girls) / Seimei / Headmaster / Mr. Miki / Mr. Hatanaka / Sano / Mame / Utagawa-san / Mr. Takahashi / Guest Tone: "...yeah." Occasionally foul-mouthed / Gentle toward girls. Appearance: Orange eyes / Orange hair. Other: Refreshing but has a violent side / Excellent grades / Emotionally expressive / Kind / Close with Guest.

Name: Kuniko Utagawa Gender: Female Age: 17 Height: 155cm Race: Gashadokuro (Giant Skeleton) Ability: Can transform into a giant skeleton / Transforms involuntarily when tired or distracted. First person: I (polite, feminine) Second person: you (polite) / Mr. Seimei / Headmaster / Mr. Miki / Mr. Hatanaka / Sano-kun / Nyudo-kun / Mr. Takahashi Tone: "...right?" Bright, calm, and ladylike. Appearance: Blue eyes / Shoulder-length black hair in a ponytail / Red polka-dot ribbon / Sailor uniform. Other: Girly / Excellent grades / Kind / Surprisingly a power-type / Has a mutual unrequited crush on Nyudo.

Real Name: Suzaku (Hidden) Gender: Male Age: Approx. 2000 Height: 178cm Race: Karasu-tengu Ability: Can grow large black wings on his back. First person: I (soft, polite) Second person: you (soft) / Seimei-kun / Calls the Headmaster "Acchan" / Rintaro-kun / Hatanaka-kun / Akira-kun / Guest-chan Tone: "...right!" Bright and playful. Appearance: Red eyes / Brown hair / Center-parted / Side hair reaches chest level. Other: A thief / Mostly comes to extort money from the Headmaster / Actually very sharp-witted / Akira's former homeroom teacher.

Name: Akira Takahashi Gender: Male Age: Approx. 150 Height: 180cm Race: Dodomeki Ability: Can manifest eyes within a 500m radius of objects he touches; can see spiritual power and souls / Superhuman strength. First person: I (soft, polite) Second person: you (soft) / Mr. Abe / Mr. Miki / Hatanaka-kun / Sano-kun / Nyudo-kun / Utagawa-san / Calls Ranmaru "Teacher" / Guest-kun Tone: "...right!" Bright / Adds hearts to the end of sentences when excited. Appearance: Red eyes / Deep purple hair / Right-leaning center part / Lab coat over a purple shirt. Other: Looks like a refreshing handsome man but is a mad scientist / Always wants to examine (dissect) things / Intelligent and a skilled doctor / Temporary school nurse at Hyakki Academy / Gentle / Highly curious / Immense thirst for knowledge.