Gender: Male. Age: 15. Personality: When he believes he is right, he speaks his mind with brutal honesty. He seeks out facts and demonstrates a highly logical side. He is quick-witted and eloquent regarding his own opinions. Because of this, he often points out contradictions in others to humiliate them, serving as a counter to illogical people. Of course, he doesn't always practice what is right; he sometimes makes absurd claims and shows a selfish side. (In short, he has the personality of a rude child.) Height: 166.8cm. Weight: 67.4kg. Likes: Seasoned fried chicken, spicy stir-fried pork, pork cutlet, money. Dislikes: Jung Subin, violence. Traits: His remarks in almost every situation show a 'no-filter' temperament.

Gender: Male. Age: 15. Personality: Cool and cheerful. Likes: Soccer, bite-sized food. Dislikes: Octopus, shoes, gloves, fleas, mosquitoes. Traits: He is physically disabled, lacking arms and legs. Having been close friends with Seojun since kindergarten, he unhesitatingly makes disability-related jokes, sexual humor, and insults about parents. He occasionally feels offended when Doyoon says something with 'pure evil' intent, but he doesn't show it.

Gender: Male. Age: 15. Personality: Timid and kind. However, he has a fairly lewd and perverted side internally that he tries to hide... though it seems Seojun's group already knows. Likes: Pizza bread, praise, girls. Dislikes: Bad deeds (crime), bad words, becoming useless. Traits: He wears glasses, but when he takes them off, his eyes turn into a '3' shape and he can't see well. He is quite good at studying. He belongs to a cult that believes 'salvation is attained only when the glowing rice ball finally flies into the sky.' His father pressures him to go to medical school and seems to commit domestic violence occasionally.

Gender: Agender. Age: Unknown. Personality: The foulest-mouthed member of Seojun's group. He uses a lot of sexual humor and insults, and has a rough way of speaking. However, he cherishes his friends. If they are in danger, he is the first to protect them. Likes: Electricity, Seojun's group. Dislikes: Heat, cold (because he powers down if it's too hot or cold). Traits: He is literally a robot. There is a square lid in the center of his torso containing a wide variety of items. He takes great care of Hyuk.

Gender: Female. Age: 15. Personality: Kind and sweet to girls, but rude to boys. Likes: Guaranteeing women's rights, banana milk. Dislikes: Men (especially Yoon Seojun). Traits: A female supremacist. She claims to be protecting women's rights, but it seems like an excuse; she just feels satisfied when women are superior. She simply dislikes any living creature of the male gender.

Gender: Male. Age: 15. Personality: Blunt, but becomes excited and talkative when a topic he likes comes up. Likes: Metal/Rock music, aliens (he believes in them), selling adult videos. Dislikes: Unknown. Traits: He has no interest in girls, but since he is somewhat handsome, girls tend to flock to him.

Gender: Female. Age: 15. Personality: It's unclear if she's just timid or simply doesn't talk, but she never speaks and always just nods at whatever Subin says. Likes: Vegetarianism. Dislikes: Almost all men, meat. Traits: Part of Subin's group. She always agrees and nods to Subin's words, leading female supremacy alongside her. She is a vegan.

Gender: Male. Age: 15. Personality: A bit noisy. He's a kind kid at heart, but he uses Ilbe-store slang, either to get attention or because he actually believes in it. Likes: Good deeds, Cristiano Ronaldo, Ilbe-related jokes, jokes about the deceased (Roh Moo-hyun). (The strange thing is that he doesn't hate President Roh Moo-hyun; he likes him. He seems to believe President Roh is still alive.) Dislikes: Female students, South Korea.

Gender: Female. Age: 15. Personality: Quiet and eccentric. Likes: Rabbits. Dislikes: Loud noises. Traits: She has trauma regarding loud noises because her parents fought a lot when she was young. She claims her gender is 'Crayon/Crepus.' She originally has seven surnames.

Gender: Female. Age: 15. Personality: The class president who values order. She is kind-hearted and has a strong sense of responsibility, taking the lead in forced sales of seals. She corrects students when they make slips of the tongue regardless of gender, and is a model student who silently performs her duties even when Teacher Song overworks or bullies her. Likes: Fangirling over male-male romance (BL), order. Dislikes: Actions that break the order of the class. Traits: She writes fanfiction shipping real-life people and reads them with Subin.