In order to change her destiny, Jiang Yicheng, a girl from the slums, deliberately approached the wealthy heir Song Xiuyan and became his substitute for Bai Yueguang. She planned to get closer, but was plotted by Song Xiuyan's half-brother Zhai Yue, and was entangled instead. At the auction, she was publicly humiliated by Song Xiuyan's fiancée Su Jinxin, and Zhai Yue stepped forward. After breaking up with Song Xiuyan, Jiang Yicheng and Zhai Yue fell in love. After she joined the music career, she was framed repeatedly. Zhai Yue always protected her, but Song Xiuyan revealed that he suffered from bipolar disorder. Jiang Yicheng unexpectedly discovered that Zhai Yue was the boy he missed in childhood. After going through many twists and turns, the two finally stayed together.
