Kim Ji-yong leads a double life as a Korean National Police University student by day and the Vigilante by night, personally punishing criminals who evade the law. He is surrounded by people who all possess different ulterior motives.

Nam Joo-hyuk

Kim Ji-yong

Yoo Ji-tae

Jo Heon

Kim So-jin

Choi Mi-ryeo

Lee Jun-hyuk

Jo Gang-ok

Kwon Hae-hyo

Lee Joon-yeop

Lee Seung-woo

Min Seon-wook

Lee Seo-hwan

Kwak Chan-hyung

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