In 2021, “very average” stuent Jia Xiaoling (played by Jia Ling) is going through some big uos-and-downs in her life. As a daughter, she always wants to make her mother pround, and is finally admitted to college, however, her mother has a serious accident. In a state of breakdown, Jia is magically transported back to 1981 where she meets a younger version of her mother Li Huanying (played by Zhang Xiaofei). The two become inseparable, just like best friends. At the same time, she also meets a group of innocent and kind friends. Jia believes she can make use of her knowledge of the future to make her mother “successful” in her younger years, but the results surprise her.