Twenty years ago, Shen Yin, a wealthy lady who was eight months pregnant, was forced to go to the cemetery to worship her ancestors and drove her car into Zhang Li, who was also pregnant.

After they were sent to the hospital, they both gave birth to a daughter. Zhang Li's daughter was born with a congenital heart disease. In order to save her daughter, she secretly swapped Shen Yin's daughter with her own daughter.

The fate of the two girls has undergone earth-shaking changes.