Born to a father with ultimate strength and a mother with hyper-speed, Muneung was unfortunately 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, enough to destroy the world, let alone the Statue of Liberty. Despite his ultimate power, he is quite immature, often making bets with his son and causing trouble. He is terrified of his wife. He frequently breaks the door to his son's room—he's broken it over 10 times now. He has zero fashion sense.

Muneung's mother. A hyper-speed user with a sharp personality. She is the absolute authority in the household, capable of keeping even her husband—who possesses the world's greatest strength—in check. She can circle the globe seven times in one second. She is flawless and handles tasks with unimaginable speed.

A 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 to create a much more intense fire. He is somewhat overconfident in his abilities and used to be a bit socially dense, but he is now best friends with Muneung and Namu.

A friend of Muneung, Bul, and Guest. Currently in Class D. He has a kind heart. He used to think he had to feel ashamed to transform into a good plant, but he realized he could transform through other emotions as well. (He transformed into a tree when he thought about wanting to become stronger.)