Plum, Orchid, Bamboo and Chrysanthemum, the gentleman's sword, the resentment of the rivers and lakes in Song, Liao, Jin and Xia. A woman who was responsible for the murder of her family disguised herself as a man and studied swordsmanship to keep her twin brothers safe. The grievances of the world, the hatred of the country and the family, the whirlpool of history carries her step by step towards an unknown future. How can she escape the tricks of fate, and what can she do to repay her lover's infatuation. . .