Lin Meng divorced her cheating husband and in order to register her 4-year-old son Juanjuan in the local household registration system, she married a local mechanic. However, Lin Meng was unaware that the person she married was actually Pei Yi, the president of a noble family. Pei Yi's original intention for getting married was to fulfill his grandfather's wish. When he realized he had mistakenly registered with Lin Meng, he decided to hide his identity to make it easier to divorce later. The family of three moved in together and their feelings intensified as they spent time together.