Who Is the Adopted Daughter?

This story follows Chen Xueyao, a wealthy young woman born with a heart condition that leaves her unable to have children. Through her good friend, Director Zhang of an orphanage, she adopts a six-year-old girl named Shasha. Director Zhang tells her that Shasha's parents died in a car accident. From the moment Chen Xueyao sees her, she adores the beautiful, adorable Shasha, whose eyes seem to hold a familiar light. But after Shasha moves into the villa, trouble keeps striking the family: their longtime nanny quits, Chen Xueyao's mother dies of heart disease, her father becomes incapacitated and is sent to a nursing home, Chen Xueyao suffers a mental breakdown, and her husband's mistress has a miscarriage... Misfortune follows one after another.

At last, the little girl's true identity comes to light. Who is she?