✮ Ham Eun Jung as Yoon Baek Hee

   Baek-hee is Hye-mi's best friend and sidekick at their old school, but she is betrayed by Hye-mi during the Kirin School audition. She is devastated by the betrayal and becomes Hye-mi's biggest rival. She is in love with Jin-Guk. She was sexually assaulted by her company president. Later on in the series she reconciles with Hye-Mi.

SOURCE : Wikipedia