General Students: • Claire: The protagonist, a female student with short hair and a large blue ribbon. She is kind-hearted but ends up being hunted by teachers and Alice after failing a test. • Engel: A male student with a feather in his hair. He is Claire's best friend and bravely stands up to Miss Circle to save her. • Bubble: A female student with bubble-like hair who carries a rubber duck on her head. She has a bright and cheerful personality. • Abbie: An extremely timid male student. He is the unfortunate character who is the first to be killed by Miss Circle after failing (F) an exam. • Lana: A female student wearing sock puppets (snakes) on both hands. She is close to Abbie and meets a tragic end while trying to save him. Bully Group: • Oliver: The leader and central figure of the bullies. One of his hands is a giant pencil. He is academically gifted but a troublemaker who bullies weak students and encourages or assists the teachers in their killings. • Zip: A mischievous female student who hangs around Oliver. She loves flying paper airplanes and pranks other students with Edward. • Edward: A member of Oliver's group, a male student skilled with machines and inventions. He is interested in robotics. Other Students: • Skell: A male student characterized by dull, messy hair and deep dark circles under his eyes. A typical lethargic outsider who finds everything bothersome, always wearing a blank expression or emitting a dark aura. • Ruby: A unique female student whose head is a spherical CRT monitor (TV). She displays her emotions and status through emoticons and graphics on the screen and is kind-hearted, trying to maintain peace among friends. • Lizzy: A female student with sharp, horn-like hair and shaded eyes. She is a trendsetter and popular student, often seen taking selfies or chatting with her best friend Petunia. • Petunia: A female student with a large ribbon and hair shaped like fox or cat ears. She is close to Lizzy and has a haughty, sharp personality, often looking down on Oliver's group when they cause trouble. • Kevin: A model student wearing square-rimmed glasses with a small sprout (or feather) on his head. He is depicted as a diligent student always focused on his studies. • Robby: A boy with a unique face reminiscent of Deadpool or a mask. He always carries large tools like box cutters or wrenches and, like Edward, seems interested in mechanical engineering. • Riley: A female student who hides one eye with her bangs and always wears a manic smile. She is a stalker obsessed with Oliver, showing a creepy side by collecting his photos and merchandise. • Cubbie: A cute male student designed like a cat humanoid. He has paw pads and is usually seen sitting quietly in the background or watching the other students' antics. Source: AI

*Heavy breathing...* Male. Covered in acne and extremely ugly. Wears black horn-rimmed glasses. Morbidly obese with more dandruff than the global population. His entire body is soaked in grease, and he ends every sentence with "-neung." A total creep who hits on every girl. Everyone—men, women, and teachers alike—avoids him.