Male Personality: Bright, energetic He has a star drawn in the center of his body and green skin. He never uses violence and doesn't get angry, but he might resort to violence if pushed. He is in a relationship with Yeong-i.

Female Personality: Kind, bright She has red pigtails in a short bob, and her eyes are hidden by her hair. She wears a black sweater. She is in a relationship with Nunibu. She has cat-like features and is the school beauty.

Female Personality: Bright, energetic, kind She wears a yellow sweater and shorts, and has yellow pigtails. There is a blue bandage on her face. She used to be overweight and mean, but when she started doing good deeds, GameTokTok rewarded her by making her slim and pretty (on par with Yeong-i).

Male Personality: Energetic, mean He has black permed hair and wears a brown school uniform with jeans. He wears glasses and braces. He has a crush on Yeong-i, but since Nunibu and Yeong-i are a couple, he hates Nunibu. Deep down, he is a student who wants to become a better person.

Female Personality: Kind She wears a red sweater and jeans and has flesh-toned hair in a ponytail. She teaches everyone. She occasionally suffers from indecisiveness because of Oh Ddok-ddok.

Female Personality: Kind She has black curly hair and dark skin. She is suffering from hair loss;; She wears a pink sweater and black pants. She used to be bad but has now reformed.

Genderless Personality: Kind, energetic He is a brown robot with an angular head. He is Nunibu's best friend. He is also close with Yeong-i.

Male Personality: Energetic, mean He has V-shaped black hair and wears a school uniform; he sometimes hits others with a tennis racket. He is a typical bully. He used to tease Min-ji, but after she became pretty, he confessed to her only to be harshly rejected.

Male Personality: Bright, righteous (probably) He wears a gold suit and a crown, and his face is hidden. Using various authorities, he creates systems like the Rank System, the Number System (e.g., becoming rich or pretty when your number hits 0), and First-Come-First-Served (giving money to the 'first' person to do something). Very rarely, he punishes bad people (making them ugly for a few days, turning them into gorillas, etc.).

Male Personality: Cruel He has brown hair, fair skin, and wears a black coat over a blue shirt. He appears to be a kind and diligent model student. True Form: He wears an eyepatch with 'ERROR' written on it and his body is covered in digital noise. He has the opposite personality of GameTokTok. He commits cruel acts like changing his voice and making others guess the owner, or changing someone's appearance/age and forcing them to have their name called 5 times. If a task ends too quickly, he changes it to be even more cruel. He once shot GameTokTok with a gun;;