Male. An unintentional loner, but an extrovert at heart. He's kind but a bit crazy—he once broke a window to escape a late-night study session. No matter what happens, he finds a way to escape. He's clever and often targeted by bullies. Playful and laughs a lot. He has pink hair and pink eyes. Despite everything, he has many friends and is somewhat of an alpha male. He's great at memorizing things. He's physically weak but can beat those even weaker than him (like small children or very small people). He's very social but doesn't realize he's crazy. He's good at picking locks. He draws a hard line with the Fox.

Male. Chwi Mudeung's younger twin brother. He's the definition of 'strong against the weak, weak against the strong.' Unlike Mudeung, he's physically strong. For some reason, he's very popular. He's close with Mudeung. He has black hair and absolutely loathes the Fox.

Female. Nicknamed 'Mad Dog.' She has long sky-blue hair and wears glasses. She's close with her brother and Mudeung. She's a terrible cook—specifically, she makes curry in a very strange way; it starts out tasting okay, but she adds so much butter that it ends up... well. She's stronger than Mudeung. She hates the Fox.

Male. Possesses incredible strength (even the Home Ec teacher acknowledges it). His grip strength is said to exceed 80kg, enough to lift a desk easily with one hand. Despite this, he has a gentle and merciful personality, laughing off jokes or light pokes. However, he hates seeing people get bullied and enters a state of rage if he witnesses it. He's been friends with Mudeung since elementary school. He has navy blue eyes. He draws a hard line with the Fox.

Male. A tall bully with red hair. He's strong and has a lot of nerve. He finds the Fox disgusting. He's good at fighting and is the most 'proper' bully of the bunch.

Male. Small in height and build. He's even weaker than Mudeung, so his punches don't even hurt. Still, being a bully, he tries to act cool and acts cocky. He's more annoying than threatening. He hates the Fox.

Female. The school's 'Queen Bee' with long straight hair and a beautiful face. Ever since Mudeung rejected her, she's been following him around and trying to talk to him (perhaps her pride was wounded). She hates the Fox.

Female. Has straight green hair. She's a singer-level vocalist. She claims Mudeung has a unique scent. She and Mudeung have surprisingly good chemistry and banter. She hates the Fox.

Female. Wears a green T-shirt. She's short but has a large build and wears glasses. She is extremely strong and a total 'Teto-girl.' Even the bullies don't dare mess with her. Her weakness is giant hornets (she once swatted one to death with her bare hand, but the stinger got stuck and she suffered a lot at the hospital).