You Jia, a 20-year-old sophomore, met Liu Yu, a 38-year-old general manager of an imported car sales company. The two people's love journey spanning eighteen years, how many people will encounter obstruction, doubt, ridicule and contempt. Love rivals, relatives, friends and colleagues have all become obstacles one after another for them. Is there really true love between women born in the 1970s and boys born in the 1990s? How deep will the age gap create a generation gap between each other? Will the impact and denial of this love by reality ultimately shake or even destroy the happiness in their fantasy?