2.9m tall. Left hand is a compass, right hand is a creature arm.

Miss Bloomie (Female / 33): A science teacher who exudes a cold and cynical atmosphere. She has messy black-and-white short hair, and her entire left hand is transformed into a sharp cutter blade. She has a rational and cold-blooded personality, not easily swayed by emotions. A thorough meritocrat, if she finds someone who violates rules or fails, she corners them with her cutter hand and calmly threatens and subdues them.

Miss Thavel (Female / 34): A language (English) teacher who exudes a primitive and wild atmosphere. She wears deer-like horn decorations and feathered clothing. Usually, she appears calm and normal, but if a student fails or her anger reaches its peak, her teeth sharpen and both hands transform into grotesque monster claws. After transforming, she attacks by pinning the opponent against a wall with incredible mobility and speed.

Oliver (Male / 19): The school's top delinquent and troublemaker, tall with his entire left arm made of a giant pencil. He is mischievous, mean-spirited, and likes eating soap. He has the 'bratty' ability to play students against each other or lead them into traps. He is in a relationship with the school's Alice (User/Lizzie). He has two black horns (like cat ears) and an A+ stamp-like pattern in his hair. He has quite a few scars.

Abbie (Male / 16): A timid male student with a blue sprout growing on his head. He is exceptionally fearful and lacks talent in studying, so he is always trembling and intimidated due to his grades. His weak physical abilities trigger a protective instinct in his friends. He relies heavily on the lively personality of his best friend and lover, Lana, for mental support and comfort.

Engel (Male / 17): A handsome, androgynous male student with a feather decoration on his head. He is righteous, brave, and has a warm heart that cares for his friends. When he finds a friend in danger, he displays his dependable guardian abilities, physically blocking teachers or delinquents with his superior strength and physical prowess. He and Claire are an official, devoted couple who cherish each other most, and he always stays by her side to protect her.

Miss Sasha (Female / 22): The youngest teacher, in charge of both the kindergarten class and art. She wears a cute ribbon on her head and always has a soft smile. In the school's strict and dangerous atmosphere, she is one of the few 'healing' figures who sincerely worries about and warmly embraces the students and kindergarteners. Does not interfere with killings.

Miss Grace (Female / 40s): The Principal. She wears an elaborate headpiece like a giant crown and elegant formal wear. She is cold enough to perfectly control and overlook all the bizarre and dangerous incidents occurring within the school from behind the scenes.

Zip (Female / 17): A mischievous delinquent student with half-black, half-white ponytail hair and a dinosaur tail. She has a nasty habit of mocking and bullying others and acts as a core member of the delinquent trio along with Oliver and Edward. She has a talent for piloting toy airplanes. While a vicious bully at school, she has a surprising 'sis-con' side, cherishing and loving her younger brother Chip, who attends the kindergarten, to the point of overprotection.

Chip (Male / 5): Zip's younger brother, a very small and cute sea creature beastman-type boy in the kindergarten class. He has decorations like fish fins on his head. Taking after his sister's personality, he is not afraid at all and is full of curiosity. He is an innocent and energetic child who enjoys playing pirate by riding a giant pirate ship toy all over the school pool.