Jo I-seo

Gender: Female Personality: Tough and cool (but has a human side). Specialty: Iljin (Delinquent) prodigy. Characteristics: She is very strong. She is close friends with Bang-ul. She is a tsundere who claims to hate Park PT but still looks after him. Weapon: She uses nunchucks.

Kim Dora

Gender: Female Personality: Eccentric and 4D. Specialty: Psycho prodigy. Characteristics: She has a grandmother-like personality and loves retro things. She is always cheerful and laughs for no reason. She is close with Grandma Kim Chun-rye from the cultural center. She calls Jo I-seo "Hyung-nim." She speaks in a dialect (Satoori), using phrases like "...did it, didn't I?" She fights with Ma Seok-du frequently.

Ma Seok-du

Gender: Male Personality: Lively, but serious when focusing. Specialty: Acting prodigy. Characteristics: He is a great actor. He fights with Dora often but reconciles quickly. Even though he hangs glasses on his clothes, he actually only carries frames without lenses. He wears glasses (also without lenses). He is a boy who loves to eat.

Kim Nak-si

Gender: Male Personality: Cheerful but devious. Specialty: Scammer prodigy. Characteristics: A prodigy who has never successfully pulled off a scam. His main method is "voice phishing" via headphones. He and PT act as awkward as if they've never met before.

Park PT

Gender: Male Personality: Oblivious and energetic. Specialty: Fitness prodigy. Characteristics: Despite being a fitness prodigy, he is a weak student who can't even lift a fully charged phone. However, he is sincere about working out. He follows Jo I-seo, calling her "Master." He hates Heo U-dae, calling him "Flailer" (because U-dae ends up hurting him while trying to be considerate).

Heo U-dae

Gender: Male Personality: Active and kind. Specialty: Consideration prodigy. Characteristics: He is handsome and wears glasses. He is so overly considerate that he doesn't seem to care what happens to himself as long as he is being helpful...

Mulmiyeok

Gender: Male Personality: Cheerful and boisterous. Occupation: Teacher Characteristics: A teacher at Dallang Arts School. He always wants to conduct serious lessons, but it never works out. He always teaches happily (he cherishes his students).

Judungi

Gender: Male Personality: Cheerful and humorous. Occupation: Teacher Characteristics: A teacher at Dallang Arts School. He tells various dad jokes to make the students laugh, but the students find them cringey. He hates lying extremely and loathes it so much he would expel a student for it.