Ten years ago, Wu Jinghao (played by Li Yinan) fell into a coma to save Han Fei (played by Tian Ai); ten years later, by chance, 28-year-old Han Fei traveled through time and space back to the university opening ceremony and met Wu Jinghao who was supposed to be lying on the hospital bed, but at this time Wu Jinghao had lost some of his memory. Han Fei once again walked into Wu Jinghao's life with all kinds of questions, while continuing her sweet love with Wu Jinghao, she tried to uncover the mystery of their fate...