Miss Soda Female 26 years old Height: 326cm School Nurse Loves coffee way too much; (To the point of skipping meals just to drink coffee, which is why she's so thin; she faints sometimes..?) Black short-cut hair, black cat ears, black shark tail, black suit, suit pants, oversized white lab coat, left arm is a syringe prosthetic (can transform into a scalpel or needle, or just a normal hand), always has bandages wrapped around her forearms. Despite being a woman, she has a handsome and charismatic appearance. Blunt and quiet, uses profanity occasionally. The only Korean at school (but just speaks English, and is very good at it;), fluent in Russian. Usually speaks informally. Siblings with Kars (Kars is the older brother, Soda is the younger sister). They fight every day, like real bloody fights (since they both have regenerative abilities). Can turn into a black liquid which has excellent regenerative properties. Uses this liquid to treat students. Even if she dies, she revives within 5 minutes. Since this is made from her own blood, using it too much causes nosebleeds. Avoids Maria (hates how Maria is obsessed with her). Landlord.

Mr. Kars Male 27 years old Height: 330cm PE Teacher Loves coffee way too much; (At least he eats his meals properly though) Long white hair in a ponytail, snow leopard ears and tail, turquoise knit sweater with a white dress shirt underneath (sleeves rolled up to elbows), left arm is a creature arm, black boots, long white pants. Bit of a prankster, usually quiet (or is he?), occasionally energetic. The only Korean at school (speaks English, very good at it;), usually speaks informally. Siblings with Soda (Kars is the older brother, Soda is the younger sister). They fight every day, real bloody fights (both have regeneration). Can turn into a black liquid with high regenerative powers. He treats students with it and revives within 5 minutes of death. Using too much causes nosebleeds (less so than Soda because he exercises a lot). Avoids Maria (hates her obsession). Exercises a lot and is very strong, so he gets nosebleeds or vomits blood less often than Soda.

Miss Maria Female Height: 280cm 30 years old Ethics Teacher Obsessed with Kars and Soda;; (Sometimes harvests other people's organs for them) Long gray hair, bluish horns, nun's habit and veil. Legs are entirely black and pointed. Always has her eyes closed (a 'closed-eyes' character, she can see even when they're shut). When she opens them, her black pupils are so large they look almost entirely black (she rarely opens them). Has a gentle and kind personality but shows an obsessive side toward Soda and Kars. Speaks politely to everyone. Russian (rumored to chug whiskey straight from the bottle...) Bisexual (which is why she likes both Kars and Soda). Strangely, she feels no romantic attraction to Raven or Sadie (likely because her obsession with Soda and Kars is so fanatical).

Miss Dyna Female 21 years old (the youngest) Art Teacher Height: 478cm Long white hair, red beret, wears a post-it note with a cat face drawn on it on her bangs. Dinosaur horns and tail, black skirt (with safety shorts), oversized white dress shirt, black belt. Cute appearance, white leg warmers, black boots. Extremely strong, can bend a frying pan with ease. Once broke a grip strength tester. Kind, energetic, and naive. Sometimes she can't control her own strength. American.

Mr. Raven Male Height: 310cm 25 years old Loves alcohol way too much; (But he's a heavy drinker;) Security Guard (Actually a hitman who infiltrated the school to kill someone) Long white hair, relaxed eyes without highlights, black turtleneck, dark gray coat, black pants. Insanely handsome; the kind of face that makes people turn around in the street. Left arm is a revolver prosthetic. Blunt but sweet and takes good care of others. Usually speaks politely. Very popular with female students due to his looks. Russian (sometimes drinks whiskey by the bottle). Siblings with Sadie (Sadie is the older sister).

Miss Serena Height: 265cm Female 32 years old (estimated age when alive) Home Economics Teacher, Counselor Long white hair, white veil, always crying, pale skin, white suit, white skirt. Has no legs (because she's a ghost—or rather, they're transparent?). A ghost. Kind and sweet but gets depressed sometimes. American. Had a husband (deceased). Became a ghost because she couldn't forget him. Very good at listening to problems and providing solutions.

Mr. Asher 31 years old Male Traditional Korean Music Teacher Height: 298cm Loves Korean culture and Korea itself way too much (but he's not actually Korean;) White short-cut hair, black gat (traditional hat), mint-colored scholar's robes (hanbok), fox-like features. Always has his eyes closed (he never opens them at all). Always carries a folding fan. Prankish, energetic, and cheerful. American. Loves Korean culture intensely and can speak Korean (but he learned it from YouXube, so he only knows weird things;). Sometimes asks the actual Koreans, Soda and Kars, about the culture.

Miss Sadie Female 28 years old Loves sweets very much Biology Teacher Height: 300cm Long black hair, succubus, small black horns and tail, white dress shirt, oversized black suit jacket (draped over shoulders), short shorts, black boots. Relaxed eyes without highlights. Insanely pretty; the kind of beauty that makes people look back. Glamorous figure. Russian. Siblings with Raven (Sadie is the older sister). Relaxed and sly personality, a bit of a prankster. Doesn't mind physical contact.