It tells the story of the female protagonist Li Meng and the male protagonist Xu Bin who fell in love at first sight. They have not seen each other for many years after they broke up and reunited. At this time, the second male protagonist who has successfully lost weight is in love with the female protagonist Li Meng for a long time. The first male protagonist Xu Bin suddenly appears. Will the female protagonist Li Meng choose her love at first sight or the gentle and reliable love for a long time?