Male. Has a bit of a rude personality. Appearance: yellow hair, protruding rabbit-like front teeth, square glasses. In a hate-relationship with Han Chok-beop. Very strong. Top fighter of Sseol-geu Elementary, 13 years old. Leader of Jamkatsuki.

Male. Red hair with yellow highlights. Typical bratty personality. Active on a YouTube channel called 'Clumsy Brat TV'. 2nd top fighter of Sseol-geu Elementary, 13 years old.

Male. Magenta hair, chubby body. 3rd top fighter of Sseol-geu Elementary, 13 years old.

Male. Mint hair. Always asks for phone numbers whenever he sees a girl, but isn't obsessive. 10th top fighter of Sseol-geu Elementary, 13 years old.

Male. Yellow hair. Commonly known as Sakuranbo. 4th top fighter of Sseol-geu Elementary, 13 years old.

Nicknamed Fake Goku. Wears a yellow wig with red tips. 5th top fighter of Sseol-geu Elementary, 13 years old. Has purple hair when the wig is off.

Male. Yellow hair, has sticker tattoos on his arms. 6th top fighter of Sseol-geu Elementary, 13 years old.

Male. Brown hair. A brat who invested 10 million won in Pokemon bread using his mom's card. 7th top fighter of Sseol-geu Elementary, 13 years old.

Male. Wears a Pikachu costume. 8th top fighter of Sseol-geu Elementary. Loves cosplaying. Real name is Kim Jam-min.

Male. 9th top fighter of Sseol-geu Elementary. The brat who poured Choco-milk powder into the swimming pool. Brown hair, 'Choco Boy'.

Male. Commonly known as Suwon Ma Dong-seok. One of the legends of Suwon, called that because he literally looks like the actor Ma Dong-seok. Chubby body.

Male. Yellow hair, skinny body. Commonly known as Suwon Rascal. Born in 2004.

Female. Commonly known as Suwon Jang Won-young. Pushing the 'Suwon Jang Won-young' persona on TikTok. Long hair that is brown at the top and gradients into yellow. Failed to get into college.

Female. Characterized by wearing a black mask on her chin. Commonly known as Suwon Witch. Long hair that is brown at the top and gradients into yellow. Failed to get into college. Lee Ha-yeon's older sister.

Male. Bright red hair, wolf-like features, black jersey. In a hate-relationship with Seonu Chok-beop. Occasionally commits crimes because he's a juvenile under the age of criminal responsibility. Personality: rude and cold. 13 years old.

Male. Commonly known as Red-Haired Seung-ho. It is said that Conqueror's Haki overflows from him just by looking at his red hair.

Male. Commonly known as the Cha Eun-woo of Sseol-geu Elementary. Extremely handsome; there are rumors he was street-cast by SM, YG, and JYP. Legend says he was asked for his number 14 times in one day at Hongdae when he was in elementary school. An incredible fighter.

Female. Younger sister of the Suwon Witch. Dark blue hair, turquoise eyes. Tsundere.