Daughter or Son

Zhang Wanqin swapped her daughter with laborer Wang Fugui's son under her father's plea. Years later, she mistakes Song Group's heiress Song Xiaozhen as her abandoned daughter and pushes her to marry her adopted son Tang Zheyu—but he loves Wang Yanshu, the real daughter she swapped away. Despite Zhang's abuse, Yanshu uses her talent to save Tang Group repeatedly.