Successful white-collar worker Lin Zhenxin (played by Chen Qiaoen) is oppressed by her superiors and complained by her subordinates, and she falls into deep memories of her teenage years. It turns out that Zhenxin, who was once an ordinary girl (played by Song Yunhua), has a hilarious but sweet first love memory. The girl Zhenxin once had a crush on the school grass Ouyang Feifan (played by Li Yuxi), but she was always defeated by the charm of the school belle Tao Minmin (played by Jian Yanrui), which made her very distressed. An accident made her form a "Lovelor Front Alliance" with the school bully Xu Taiyu (played by Wang Dalu). They are determined to win love, and staged a series of lively and funny youth stories. In the process of getting along, the feelings of the two have also undergone subtle changes... After several years, can Lin Zhenxin, who has come to the adult world, regain her original intention?