Tiffany, Yoona, Sooyoung.

They are best friend since in middle school. Up until now in senior highschool they are known as their bad reputation.

Tiffany as a hot-y playgirl that always have a woman around her finger when she lay her eyes on her prey. Shes a daughter of Hwang Steven that known as a CEO of Hwang Group. The biggest company in Korea. Even little that everyone know, her life is not as perfect as everyone know. 

Yoona, if you heard her name, you will hear it in news, CF, drama even a movie. She Korean Goddess, the most beautiful actress in Korea. Her family have a Big hospital in Korea, her life is almost perfect as an Cinderella that already meet her Prince. But, her life is actually never been perfect since something BIG happen in her life.

Sooyoung, a daughter of Choi Jungsoo that known as a success business man. Her father has a secret that everyone know that he have a wifes, yes not just one wife. Sooyoung life is never been in peace when shes at home. Just her big sister that always care about her. Her other sister and her brother will always fight to take eachother belonging, like money and Choi Jungsoo heart to become his heir.