The story of "Changing Hearts" is about a pair of people who love each other. The heroine is Gong Yuan, the eldest daughter of the Gong family. She has congenital heart disease. When she learned about her condition and that her time was running out, her only wish was to be an ordinary person. The girl wanted to live an ordinary life, so she asked her grandfather to give her three months to try to be an ordinary girl. Later Gong Yuan came to Yang Ji Noodle Shop and changed her name to Hua Xi. She met Yang Feng, the boy who gave her sunshine. Later Gong Yuan During her grandfather's 60th birthday party, her cousin Su Xiaonuan was jealous of Gong Yuan. They had an argument in the car and got into a car accident. When her grandfather learned that the two could undergo heart transplant surgery, he chose his biological granddaughter and secretly A heart transplant operation was arranged for them to exchange their hearts. After the two woke up, they could not remember everything before. It was as if they had changed their hearts and exchanged souls with each other, and their personalities had also changed. In the end, who would Yang Feng choose to love?