Taxi Driver (2021)

Shall We Start? (1x16)

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The notorious serial killer Oh Chul-yeong turns out to be the actual murderer who killed Do-ki's mother and Sung-cheol's parents. Also, there is a man named Kim Chul-jin who had to serve 20 years in prison for a crime that Oh Chul-yeong committed. Despite Rainbow Transport's ups and downs, they decide to carry out their last revenge.