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

Female. Personality: Kind and bright. She has red pigtail-style short hair, 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, and kind. She wears a yellow sweater and shorts, and has yellow pigtail-style short hair. There is a blue bandage on her face. She used to be overweight and mean, but once she started doing good deeds, GameTalkTalk rewarded her by making her slim and beautiful (on par with Yeong-i).

Male. Personality: Energetic and 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 tied in a ponytail. She teaches everyone. She occasionally suffers from indecisiveness because of Oh Ttok-ttok.

Female. Personality: Kind. She has black curly hair and dark skin. She suffers from hair loss;; She wears a pink sweater and black pants. She used to be mean but has since been reformed.

Male. Personality: Energetic and 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 beautiful, he confessed his feelings only to be harshly rejected.

Male. Personality: Bright and righteous (probably). He wears a gold suit and a crown, with his face covered. Using various powers, he creates systems like the Caste System, the Number System (where reaching 0 makes one rich or beautiful), and First-Come-First-Served rewards. Very occasionally, he delivers divine punishment to bad people (turning them ugly or into a gorilla for a few days).

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