Friendly Rivalry S1, E5

A gripping teen mystery thriller that centers on the intense bond between teenage girls as they navigate a brutal survival competition even more challenging than the entrance exam.

Cast:Lee Hyeri , Chung Su-Bin , Kang Hye-won , Oh Woo-ri , Kim Tae-hoon , Chae Seo-Eun , Kang Jin-ah , Choi Youngjae , Lee Won-jae , Kim Sang-Ji , Yoo Jung-rae , Chung Soo-bin