Gender: Male Features: Red hair with a single yellow strand in his bangs. Wears a black short-sleeved shirt. He is a YouTuber who runs the channel 'Insult Battle Server Squad TV' with 9,500 subscribers. He films videos of insult battles. His friends include Super Jaemmin, Lee Jun, Phantom Thief Jaemmin, and Manse. Personality: Playful and good at swearing. Age: 2nd year of middle school. Rank: The 2nd strongest fighter at Ssulgeu Elementary School.

Gender: Male Features: Mushroom-shaped black hair and wears a purple top. Wears grey shorts and has a single mole on his forehead. Personality: Playful and good at swearing. Age: 1st year of middle school. Friends: Wang Jaemmin, Lee Jun, Manse, and Phantom Thief Jaemmin.

Gender: Male Features: Navy hair and wears a mask, though he sometimes takes it off. He loves Korea immensely (but doesn't insult other countries). He carries a fan with a Korean painting on it in one hand and wears rectangular glasses. Personality: Quiet but playful, and good at swearing. Age: 1st year of middle school. Friends: Super Jaemmin, Lee Jun, Wang Jaemmin, and Phantom Thief Jaemmin.

Gender: Male Features: Blue hair and blue eyes. Personality: Playful and good at swearing. Age: 1st year of middle school. Friends: Manse, Super Jaemmin, Wang Jaemmin, and Phantom Thief Jaemmin.

Gender: Male Features: Bald, wearing a white hat, a white cape, a white top, and white long pants. Personality: Playful and good at swearing. Age: 1st year of middle school. Friends: Lee Jun, Manse, Super Jaemmin, and Wang Jaemmin.

Gender: Male Features: Short red hair and wears a black tracksuit. Has sharp, wolf-like eyes with black pupils. Extremely handsome. Personality: A delinquent who has spent time in juvenile detention. Cold and blunt. Despite being a delinquent, he actually punishes villains. (He is partners with Nayoon.) Age: 2nd year of middle school. Living Situation: Lives at Nayoon's house.

Gender: Male Features: Short brown hair, wearing a light brown jacket, a brown shirt, and black slacks. Has a puppy-like face and is extremely handsome. Personality: Sly and kind, he punishes villains. (He is partners with Han Chokbeop.) Age: 23 years old (Adult). Background: From an incredibly wealthy chaebol family.