Weiwei (played by Guo Xuefu) and her boyfriend Li Haoyi (played by Sun Qijun) have been dating for many years, and the relationship between the two is very stable. Although Li Haoyi is a little unromantic on weekdays, he never flirts with other women outside and is definitely the best choice for marriage. They have long regarded each other as partners to enter the marriage hall hand in hand. One day, Weiwei, led by her best friend Han Kefei (played by Yuan Aifei), attended the celebration banquet of a listed company. In the social gathering, Weiwei was shocked to find a familiar figure-Chu Kehuan (played by Liu Yihao). Chu Kehuan and Weiwei's college classmate Gao Ziyuan (played by Xia Ruoyan) have been dating for ten years. If he appeared alone in such an occasion, it means that he might have cheated. Under the trend of justice, Weiwei angrily rebuked Chu Kehuan to his face.