Actor KIM Yun-seok will make his directorial debut with Underage (translated title). The film is a family drama that portrays the experiences of a 17-year-old girl and her friend in the world of abnormal adults. Actress KIM Hye-joon has been cast as the lead and will play the teenage daughter while YUM Jung-ah and KIM Yun-seok will play her parents. Other cast members include rookie PARK Se-jin, w...