Ruo Xi, a 28-year-old beautiful architect, was forced to get married when she returned to her hometown during the Spring Festival. She asked Gu Chengjun, a security guard she met by chance, to pretend to be her boyfriend. But who would have thought that Gu Chengjun would have regarded her as Bai Yueguang ten years ago, and that she was the son of the high-ranking chairman of his own group. With their identities so different, how will this improvised drama end in the bustling Spring Festival? What kind of bizarre and sweet trajectory will the gears of love turn?