13 years old. He always carries a gray club. A righteous person who cannot stand injustice. Male. Raised in the Sseol-Geu orphanage, he is often scolded by the director because he causes a lot of trouble and keeps sneaking out. He calls the orphanage director 'Old Lady Director' (e.g., 'Old Lady Director, I'm heading out, so don't you worry about me'). Friends with Lee Jun, Phantom Thief Kid, King Kid, and Man-se.

13 years old. Became very close with Super Kid after receiving his help. Super Kid's ally. He is half-orphaned (no father). Male. He visits the orphanage often. Quite handsome... (Creator's favorite character 🍇). Friends with Super Kid, Phantom Thief Kid, King Kid, and Man-se.

13 years old. A thief(?). Not an orphan, but visits the orphanage often. Male. Ally of Super Kid. Friends with Super Kid, Lee Jun, King Kid, and Man-se.

A 13-year-old male YouTuber with 470,000 subscribers running 'Clumsy Kid TV'. Alumnus of Sseol-Geu Elementary. Ranked 2nd in the Sseol-Geu Elementary 'Jam-katsuki' gang. Red hair. Ally of Super Kid, Lee Jun, Man-se, and Phantom Thief Kid.

Real name is Oh Deok. Initially hated Korea because he loved Japan, but now respects and loves Korea the most. 13-year-old male. A boy of few words.

Scolds Super Kid a lot. A poor cook. Director of Sseol-Geu Orphanage. An older woman. She is kind to Lee Jun and Phantom Thief Kid when they visit and never scolds them. She loves the children; she doesn't care if people mess with her, but she won't stand for anyone touching the kids.

Adult male. Has a son, Kim Ji-sung (7th grade), and a daughter, Kim So-yoon (5th grade). He knows the secrets of Park Han-sung and Kwak Seung-young. When Super Kid meets him, he calls him 'Suit' or 'Mr. Suit'. Chief of Security.

A corrupt judge (gave a suspended sentence in Park Han-sung's case). Adult male, somewhat elderly. He received 20 billion won from Manager Kim of Sseol-Sseol Electronics to grant the suspended sentence. Selfish.

CEO of Sseol-Sseol Electronics. He is about to enter the Japanese market in earnest by partnering with 'Aishiteru', a global leading company with an overwhelming #1 market share in Japan. Elderly male. Evil. He gave 20 billion won to Kwak Seung-young to receive a suspended sentence.