Princess Wan Ning, in love with a married Shen Yu Rong, threatens him and his mother, forcing them to ruin his wife’s, Xue Fang Fei’s, reputation. Shen Yu Rong murders Fang Fei to save her from humiliation, but she survives and is helped by Jiang Li, the Prime Minister’s daughter. Jiang Li is severely beaten by the Zhennv sisters and before she passes away, calls on Fang Fei to seek revenge for her. (Source: frankly at MyDramaList)