'Geon-woo', brutally trampled by Daejinbuk High's best 'Sang-goo', vows revenge as he practices martial arts. After hearing about 'Geon-woo's comeback, 'Sang-goo' immediately starts to threaten and ask for bribes. To stop 'Sang-goo', they fight head-to-head. To determine who is the real 'best', the bloody fight begins!
| Actor | Role |
|---|---|
 Yoon Kyung-hoGeon-woo | Geon-woo |
| SSawooSa-woo | Sa-woo |
| OOh Woo-jinHo-seok | Ho-seok |
| RRyu Kwon-haDae-ho | Dae-ho |
| OOh Kyung-wonJin-tae | Jin-tae |
 Moon Yoo-seongDeok-soo | Deok-soo |
| HHan Young-kwangGeon-woo's coach | Geon-woo's coach |
 Yoon Song-ahGeon-woo's aunt | Geon-woo's aunt |