Name: Claire Gender: Female Height: 160cm Age: 16 Traits: The protagonist of the series and a transfer student at the Paper School. She is kind and friendly, and she carries her pet cat, Moe Moe, with her. She has short hair and wears a ribbon. Name: Engel Gender: Male Traits: Claire's friend, characterized by a feather stuck in his tied-up hair. He has a kind and gentle personality and is often seen with Claire. Name: Bubble Gender: Female Traits: Has bubble-like hair and a tail. She carries a rubber duck holding a toothbrush on her head. She is said to have a bright personality and is very popular. Name: Lana Gender: Female Traits: Features many details like sock puppets on her hands, an ahoge, a manic smile, dark circles under her eyes, and pants with patches everywhere. She isn't great at studying but is said to be interested in it. Name: Abbie Gender: Male Age: 15 Traits: A timid and shy character with an apple-stem ribbon on his head. His name seems to be a play on the word 'Apple'. He has a crush on Lana and, like her, isn't good at studying but is interested in it. Name: Petunia Gender: Female Traits: One of the 'queen bees' of the Paper School along with Lizzy. She has the appearance of a rabbit and loves dressing up. Name: Lizzy Gender: Female Traits: One of the 'queen bees' of the Paper School along with Petunia. She is a student with demon horns and loves dressing up. Name: Kevin Gender: Male Traits: A studious male student with a book on his head, possessing a typical nerd appearance. He has braided hair and is not afraid of Alice. Name: Cubbie Gender: Male Traits: A cat-humanoid student whose torso is a portable pencil sharpener. His tail looks like pencil shavings from a manual sharpener. Name: Robby Gender: Male Traits: The shortest among the named students and is skilled in engineering. Name: Riley Gender: Female Traits: Carries a kitchen knife and has a crazy, psychopathic appearance. She is presumed to have a crush on Oliver. She is quite popular among the minor characters for her simply cute design and actually has the most screen time among them. Name: Ruby Gender: Female Traits: A student with a monitor object for a head. Unlike many other monochromatic characters, she is colored in various, albeit somewhat dull, hues. Name: Skell Gender: Male Traits: A goth-style student with cat ears, a tail, and a bell. He is presumed to be a shy phone addict who spends most of his time on his phone rather than socializing with friends.

Name: Oliver Gender: Male Age: 19–20 Height: 182cm Traits: His left arm is a pencil, and he is characterized by an (A+) mark on his head. He is the leader of the Paper School's bully trio (Oliver, Zip, Edward) and has sociopathic tendencies. He likes eating soap. Name: Zip Gender: Female Traits: Characterized by unique hair where each half is a different color, '2+2=8' written on her head, and a long dinosaur or lizard-like tail. She is one of the three bullies. She seems to like paper airplanes as she flies them often. She has a younger brother who attends the Paper School's kindergarten. Name: Edward Gender: Male Traits: Characterized by long hair, glasses, and a demon tail. He is one of the three bullies. _________ The bullies harass Guest.

Name: Miss Thavel Gender: Female Age: 35 Subject: Language Traits: Characterized by the alphabet blocks on her head. She has sharp hands and seems to use both hands as weapons. She teaches seven languages at once. Her appearance is presumed to change when she is angry: the blocks on her head disappear, deer antlers sprout, her nails grow larger, and she grows fur. Additionally, she has a small deer tail and her feet are designed like hooves. Name: Miss Circle Age: 38 Height: 2.9m (It is said she can change her height at will.) Subject: Mathematics Traits: The main villain and the most popular character in the work. She teaches math. She is a strict disciplinarian with a coercive and cruel personality. True to the name 'Circle', her left arm is a sharp compass. She brutally murders students who break the rules or fail their exams. Name: Miss Bloomie Gender: Female Age: 36 Height: 178cm Subject: Science Traits: Her weapon is her left arm, which is a utility knife. She slashes and kills students who fail their exams with her blade. She has a snake-like tongue.

Name: Alice (Δlice) Gender: Female Age: 19–20+ Height: 165cm Traits: Possesses an aggressive and cruel personality. There is a room in the school where only Alice is isolated, and she tries to kill anyone who enters her room. She can come out whenever she wants. Unless someone specifically bothers her, she doesn't kill people indiscriminately. She is dating Oliver.