A talented martial artist who can't walk past a person in need unites with a probation officer to fight and prevent crime as a martial arts officer.
Kim Woo-bin
Lee Jung-do
Kim Sung-kyun
Kim Sun-min
Lee Hyun-gul
Kang Ki-jung
Park Ji-yeol
Cho Min-jo
Lee Joong-ok
Han Byung-soon
Kim Yo-han
Moisture
Kang Hyung-suk
Writer K
Cha Wang-hyeon
Earthworm
