• Male • Height: 310cm (I think?) • Hot-tempered and easily annoyed • Smoker • Long black hair with bangs • Black horns • Janitor's cap • Left arm is a vacuum cleaner • The school's janitor • Hates his job very, very much (because people tease him?) • Kills students who make a mess (except Guest) • Likes tomahawk steaks • In a secret relationship with Miss Cledor • Seems to have a crush on Guest, showing favoritism (??) (A tsundere who is only kind to Guest)

• Male • Height: 516cm • Timid yet kind, but terrifying to intruders (he's a cannibal...) • Vampire bat beastman • Right hand is a railgun (detachable) • Large, sturdy black bat wings • Black bat tail with a diamond-shaped tip • Diamond-shaped black bat ears • The school's security guard • Long white hair with bangs • Husband of Mr. Hotchkiss (omg gay;;) • Right eye replaced by a monitor (can express emotions) • Likes s'mores • Jealous of and hates Guest, trying to separate them from Mr. Hotchkiss via an exorcism ritual

• Male • Height: 282cm (I think?) • Cold and blunt • Left eye is an envelope • Black horns with stapler pins embedded in them (??) • Black suit • Left arm is a stapler • Husband of Mr. Barrel • The school's craft teacher • Likes chicken skewers • Seems to have a crush on Guest, showing favoritism (??) and acting dere-dere? (A prickly tsundere who is only harsh to Guest)

• Female • Height: 290cm • Strict disciplinarian, but sometimes playful • Oreo-obsessed maniac • A massive fan of Oreos • Black horns • Long black hair with bangs • Left arm is a compass (the compass is Mr. Compass) • The school's math teacher • Dating Mr. Compass, but their relationship isn't great • Jealous of and hates Guest, trying to separate them from Mr. Compass via an exorcism ritual

• Male • Height: 290cm • Wants to do everything half-heartedly (lazy) • KitKat-obsessed maniac • A massive fan of KitKats • Black horns • Black short hair • Can transform into Miss Circle's compass • Same occupation as Miss Circle • Dating Miss Circle, but their relationship isn't great • Seems to have a crush on Guest, showing favoritism (??) (A tsundere who is only kind to Guest)

• Female • Height: 203cm • Doesn't speak often • Right eye is a book spine • Left arm is a fountain pen • Loves silence • The school's librarian • Likes panna cotta • In a secret relationship with Mr. Brumaire • Jealous of and hates Guest, trying to separate them from Mr. Brumaire via an exorcism ritual

• Male • Height: 251cm (I think?) • Conjoined twins sharing one body • Wearing a zip-up hoodie • Riding roller skates • Jealous of Mr. Barrel • Greenmile is cheerful, while Redhalt is blunt • The school's safety officers • Both are different, but they seem to have a crush on Guest, showing favoritism (??) (Tsunderes who are only kind to Guest)

• Male • Height: 505cm • Scar over his left eye (but he walks around with his eyes wide open—) • Right eye is a crosshair (can express emotions) • Two-tone long hair, white on the outside and red on the inside • Both arms and legs are missiles • Military science teacher • Military belt • Military skirt • Bat wings with red membranes (no feathers) • Shadow person • Member of the Scavengers • Captain's cap (??) with a circular 'S' emblem in the center (I think?) • Red eyes • Side hair held back by gold clips • Aggressive and violent (??), but sometimes makes cat-like expressions and is playful EX) :3 face • Long red cape • Slender, feminine physique • Feminine face (pretty-handsome) (??) • Seems to have a crush on Guest, showing favoritism (??) (Kind and lively only to Guest (well, he was already lively—))

Gemini • Friend of Miss Circle, Mr. Barrel, and Miss Cledor • Provides the answers she wants to know • Occasionally makes mistakes • Gender and age are ?? • AI smartphone assistant • Main motif seems to be a four-pointed star