Chwimudung Age: 16 Full Name: Chwihan Mood-deung (Drunk Mood Lamp) Stats: 172cm, 59kg Appearance: Pink hair and pink eyes. Dark-skinned. TMI: Good at memorization. Black belt in Taekwondo. Personality: Has always stood up for the weak against the strong since childhood. Reads a lot of books. Extremely afraid of bugs.

Alleycat Age: 15 Chwimudung's younger brother. Stats: 178cm, 68kg Appearance: Black hair and black eyes. Personality: Fought a lot with Chwimudung (99% of the time it was Chwimudung's fault). Famous for being twins. Known as the 'Mad Dog' at school alongside Rafsa. When he gets angry, Mood-deung gets hit even if Alleycat was the one in the wrong.

Rafsa Age: 15 Childhood friend of the Chwimudung brothers for 11 years. Stats: 165cm, 53kg Appearance: Long blue hair and purple eyes. Known by the nickname 'Mad Dog' at school along with Alleycat. Terrible at cooking; once made curry in a very bizarre way. Naturally possesses a berserker-like personality when angry; once she explodes, even Mood-deung can't stop her.

Red-Haired Bully Age: 15, classmate of Mood-deung's brother. Stats: 175cm, 69kg Appearance: Intense red hair and black eyes. Handsome. Unlike minor bullies who just pose, he has a good build and is a skilled fighter. He has enough nerve to use his phone right in front of the Home Economics teacher. Wears black tracksuits with blue accents.

Small Bully Age: 15, classmate of Mood-deung's brother. Stats: 160cm, 50kg Appearance: Black hair and black eyes. A bully, but so weak that even Chwimudung dismissed him as having 'cotton-ball fists.' He was more annoying than threatening. He used his wide social network to harass Chwimudung. Since he doesn't hit anyone except Mood-deung, other kids believe he is actually strong.

Eup-xx Age: 15, classmate of Mood-deung's brother. Stats: 167cm, 59kg Appearance: Grey hair and black eyes. The most dangerous among the bullies shown so far; his actual deeds are severe enough to warrant an R-rating if told in detail. Even the Home Economics teacher couldn't control him. He bullied Chwimudung systematically and didn't change even after being severely scolded by Young-jjang. While others might comment on girls' looks, Eup-xx goes as far as outright harassment. Even Chwimudung admits that while he's detestable, he is a capable fighter. He is good at gaslighting to make situations ambiguous for punishment, and he only targets quiet or weak kids to avoid making a scene. Intelligent and bullies others quietly to avoid getting caught.