In the moment of the car accident, Su Nianxia returned to the summer when she was seventeen years old. The cicadas were chirping outside the window, and on the podium was Lu Qingyan, whom she would regretfully miss. In this life, she is no longer timid, and is determined to take the initiative to get close to that dazzling but lonely young man and make up for all the misses. However, changing destiny is not easy: you have to respond to the inexplicable hostility of your childhood sweetheart Jiang Yu, you have to help your friends Shen Zhiyi and Lin Zhaoyang overcome the wall of their hearts, and you have to face the invisible pressure brought by your senior schoolmate Xu Jing. At the most glorious moment of youth, Su Nianxia clasped her hands and vowed to rewrite the ending without leaving any regrets.