Zheng Shuyin, the 33-year-old vice president of a real estate company, and her husband Qin Che were framed by her best friend Liu Meiling in the same company, causing him to suddenly become seriously ill and lying in bed. She was hit by Liu Meiling's car accidentally. Ten years ago, the heroine who had just graduated from college and her best friend Liu Meiling joined the same real estate company. The boss of this company is 26-year-old Qin Che. In fact, Qin Che and Zheng Shuyin have known each other since childhood. Zheng Shuyin has liked this brother who is three years older than her since she was a child. However, at that time, Qin Che only regarded her as a little sister. How should she save Qin Che who won her back, and how should she expose Liu Meiling's conspiracy?