Introduction: Mu Qingfeng and Chu Mingyue are childhood sweethearts and happy enemies. They grew up "playing" together. When high school started, they were assigned to the same school and class. Chu Mingyue sighed helplessly, but Mu Qingfeng was filled with joy. Three years passed by. In order to pursue her dream of design, Chu Mingyue went abroad for further studies. Mu Qingfeng watched her leave at the airport, feeling full of reluctance. Five years later, Chu Mingyue and her family returned to China, and Mu Qingfeng happily picked her up. Faced with Lin Yue's "dislike", he declared domineeringly: "I, Mu Qingfeng, rely on you!" Their story contains the ignorance and vitality of youth, the longing and growth of separation, and the sweetness and determination after reunion.