Vigloo

Chung-ah is the most popular girl at her elite, private high school. She's used to getting her way and being fawned over. But her perfect life comes crashing down when Rena transfers to her school. While trying to bring Rena under her thumb, Chung-ah discovers that she is secretly the daughter of a powerful political family, and Rena discovers that Chung-ah's glamourous life has been a lie!

Lee Ruby Shin Jiyeon Kim Taehee