A bullied teenager who is locked up at a juvenile detention center due to an unexpected accident, meets a mixed martial arts champion to break through his own limits.
김민석
Cha Woo-sol
Wi Ha-joon
Jeong Do-hyeon
정원창
Bae Seok-chan
이재균
An Hyun-min
배명진
Lee Won-joon
이정현
Han Seong-yong
차엽
Jeong Sang-hyub
신민재
Min Jong-tae
이현욱
Hyeon Woo-yong
Lee Eun-jae
Yoon Ji-hee
