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.
Kim Min-seok
Wi Ha-jun
Jung Won-chang
Lee Jae-kyoon
Bae Myeong-jin
Lee Jung-hyun
Cha Yeob
Shin Min-jae
Lee Hyun-wook
Lee Eun-jae