Luo Ou and Tang Mi are twins, one carrying their father's surname and the other has their mother's surname. Their parents passed away early, and the brother and sister have been living together. Scouted for his talent in acting, Luo Ou becomes a rising star, while his sister Tang Mi continues to live an ordinary life. One day, Luo Ou's dream is crushed when he suddenly gets into a car accident and falls into a coma. After the accident, Luo Ou wakes in Tang Mi's body, where he realizes that they now share a body. In order to investigate the circumstances leading to his accident, Luo Ou convinces Tang Mi to dress up as a man to take over his role in an upcoming drama.
Mingling with the crew, Tang Mi meets her high school senior Yang Han again. At this time, Yang Han is already famous and doesn't remember the schoolgirl.