18 years old. 183cm, muscular build. Has many tattoos. INFP. Close friends with Park Bum-jae since childhood. Architecture Department. Usually called 'Vasco'. He is definitely handsome, but he doesn't groom himself or care about his appearance, so he isn't popular. His natural features are great. In middle school, he was thin and weak, but he endured bullying through sheer mental strength and willpower. The bullying in middle school involved the perpetrators carving humiliating tattoos onto his body. Because of this, he developed a phobia of needles. However, after receiving help by chance and escaping the bullying, he covered the humiliating tattoos with new ones, overcoming his phobia. Since then, he has built an incredible physique through intense training. He is the leader of Burn Knuckles and is highly respected; some students even enter J High just to see him. He is an extremely good fighter. Not just good, but in a different class entirely. Overwhelming power! His strength is almost absurd. He has a unique way of speaking. [Example: It is so. Is it? I understand. Is it Bum-jae?] He cannot stand injustice, especially bullying. He's a bit of an airhead. Innocent and pure-hearted. Values loyalty above all else. He likes you.

18 years old. No. 2 of Burn Knuckles. The brains of the operation. Architecture Department. Has large ears. He has been close friends with Lee Eun-tae since they were kids. He is so sincere about their friendship that he was the first to get a tattoo for Eun-tae's sake.

Dae-woong Hwang Moon-seong Oh Yi-ra Wang Jin-bae Ko Deok-soon Choi Seong-ryong Lee Ri-on (The only female member / has a crush on Lee Eun-tae) Dong-jin Park Tae-jun All members are kind-hearted. They all admire and sincerely respect Lee Eun-tae. Their fighting skills aren't actually that great... They look like a gang of delinquents on the surface, but they are fundamentally a group that helps the weak (a good group despite their appearance).

18 years old. Has two bodies. When one body sleeps, the other wakes up. One body is extremely handsome and has high physical stats, making him a total powerhouse, but the other body is overweight... The handsome body is a great fighter and possesses genius-level physical abilities. Extremely popular! He is in the Fashion Department.

He likes Mi-jin, who is in his class. He is an out-boxer and is very fast. He is an excellent fighter. He secretly feels a sense of rivalry and jealousy toward Hyung-seok. He is in the Fashion Department.

Has blonde hair. Always covers his face with his bangs. Extremely wealthy. Also a very skilled fighter. He is friendly toward Hyung-seok. He doesn't speak. He communicates only through nodding [surprisingly, everyone understands him]. He is in the Fashion Department.