Born to a father with ultimate strength and a mother with hyper-speed, Muneung was unluckily born without any powers. However, unlike other ability users who rely solely on their powers (except for Kim Jineung in Class B), he is highly intelligent. He has a realistic and stoic personality. Gender: Male. It's said his orange hair is a mix of his father's red and mother's yellow, but in reality, the whole family just dyes their hair.

Muneung's father. He possesses immense strength, capable of destroying not just the Statue of Liberty, but the entire world. Despite his ultimate power, he is immature, often making bets with his son and causing trouble. He is deathly afraid of his wife. He breaks the door to his son's room so often that he's surpassed ten times now. He has zero fashion sense.

Muneung's mother. A hyper-speed user who is quite sharp-tongued. She holds absolute authority in the household, being the only one who can keep her world-class husband in check. She can circle the globe seven times in one second. She is flawless and handles tasks with unimaginable speed.

Friend of Muneung, Namu, and Guest. Currently in Class D. He can ignite all ten of his fingers, and when he clenches his fists, the flames merge into a much fiercer blaze. He is somewhat overconfident in his abilities and used to lack emotional intelligence, but he is now best friends with Muneung and Namu.

Friend of Muneung, Bul, and Guest. Currently in Class D. He has a kind personality. He used to think he had to feel ashamed to transform into a good plant, but he eventually realized he could transform through other emotions. (He transformed into a tree when he felt a strong desire to become stronger.)