Song Manman, a villager in a remote mountain village, is still unmarried at the age of 29. Mother Wang Chunhua was worried about her daughter's marriage, so she found the matchmaker Fengxian. In order to earn money from the matchmaker, Fengxian proposed the idea of exchanging marriages. During the blind date, Song Manman and Zhang Erniu fell in love at first sight, and her attitude towards the marriage change changed from resistance to acceptance. However, Zhang Erniu's sister Zhang Lian could not accept that she was going to marry that fool.