The play tells the story of Yu Fei (Qin Li) living in a single-parent family since childhood. She is positive, kind and optimistic, without the paranoia of children growing up in single-parent families. Her mother, Yu Yue (Yang Yuting), is unhappy and heartless, but this does not leave a shadow in Fei's heart. She always looks after her mother.
Born in a wealthy family and spoiled, Ling Ye (Adi) has been held in the palm of his parents' hands since he was a child, and he likes to play small temperament. The disparity in identity did not stop her and Yu Fei from becoming girlfriends who talked about everything. When she grows up, the girl has more and more thoughts, especially when she finds her beloved Zhang () being targeted, her heart is full of jealousy.
In order to get back at her former sisters, she and her husband Xia Yuyang (Zhang Xunjie), who abandoned Yu Fei at first, are in cahoots and do whatever it takes. Just then, an explosive news puzzled them. It turns out that they are half-sisters who have been changed since birth. ......