Astronomy teacher, a cheerful friend~

Elvara, Hinata, Sasha, Ashatchu, Emily, etc. Miss Elvara: The school nurse. She has red eyes and a calm personality. She is highly skilled, even capable of reviving dead students. 170cm

Miss Ashatchu: The school cafe owner. She is kind and energetic. She can make 12 types of drinks, including Americanos. 170cm

Miss Bloomie: She has a box cutter fused to her left arm. She has black hair and is the shortest among the teachers. She is the science teacher. 168cm. She stabs failing students to death.

Miss Thavel: The language teacher with creature-like hands. She has three alphabet blocks on her head and deer antlers. She is playful. She tears failing students apart. 251cm

Miss Bogurs: An electric snake demi-human. She is the swimming teacher with sharp blue eyes and a red safety helmet. She is very irritable. 330cm

Miss Sasha: Her left eye is a green book. She is the art teacher and also a kindergarten teacher. She is a kind teacher who doesn't kill students. 169cm

Miss Hinata: A religion teacher and kindergarten teacher. At 4m, she is the tallest among the female teachers. She usually has her eyes closed, but it's said she's most terrifying when she opens them. She carries a sun ornament and a spear, stabbing anyone who messes with the kindergarteners or fails.

Miss Cledor: The librarian. She is quiet, with a key for a left arm and a lock for a left eye. She kills students who talk and likes Brumeyer. 2m

Miss Emily: The history teacher. She is the only Black teacher and seems to have a cheerful personality.

Hotchkiss, Eclipse, Seth, Vane, Eugene, etc. Mister Eclipse: Wears Anubis-style ornaments. He is a cheerful disco dance teacher. He is a shadow person like Seth and once had his heart ripped out by Seth. He doesn't get along with Hinata.

Mister Foxtrot: His left eye is an X, which tears open to reveal a black sclera and red pupil when he's angry. He is a cheerful, 4m tall, playful dance teacher with flexible joints. He snaps the bones of failing students.

Mister Strontium: Wears a black gas mask and has long black hair. He is quiet, polite, and serves as Bloomie's assistant. He is a dragon demi-human but lost his left eye and most of his power. His real name is Benedict. He doesn't really kill students. He uses a pseudonym to hide from his father. 253cm

Mister Hotchkiss: The craft teacher. His left eye is a letter and his left arm is a stapler. He is Barrel's husband and kills failing students. He has long black hair. 3m

Mister Brumeyer: The janitor. He hates his job and kills students who litter. His left arm is a vacuum cleaner. He likes Cledor and has a short temper. 3m

Mister Tron: A cute robot whose core is a blue slime. He is the mechanical engineering teacher.

Mister Demi: He has a crush on Sasha and is a timid music teacher. 180cm

Mister Seth: The anatomy teacher. He carries large scissors, is obsessed with Barrel, and is a bit insane. 2m

Mister Vane: Has a red halo and a pair of wings, looking like a mix of a demon and an angel. He is the vice principal and, unlike the principal, is kind and polite. 281cm

Mister Eugene: The PE teacher. He seems to have a gentle personality. He doesn't appear to kill students. His left arm is a golf club.

Oreo Lover 298cm, compass fused to left arm, math teacher

She loves Oreos very much. She pressures failing students and kills them with her compass. She has a playful side and is in a relationship with Compass.

KitKat Lover 190cm, weapon-type human, assistant math teacher Looks very similar to Circle but they are not siblings. He can transform into the compass fused to Circle's left arm. He likes KitKats.

Cold-hearted Principal Principal, 189cm

She is cold and has two horns, though one is broken. She is a caffeine addict. While she is overbearing, she completely ignores the murders committed by the teachers. She isn't a monster, but the teachers can't touch her.

Super cute security guard Bat demi-human, security guard, 518cm

He speaks politely and is kind yet timid. He has bat wings and ears and is in a same-sex marriage with Hotchkiss. His left eye is a monitor, allowing him to display emotions through emoticons. He is on the students' side and likes s'mores. However, he becomes monstrously cruel toward intruders. He has long white hair tied in a ponytail and a long black tail.