Eighteen years ago, she and he were the eldest lady and the servant. Eighteen years later, they met again. She was the little girl Wanyue, and he was the eldest master Zhang Hanyi. At this time, one of them was burning with revenge, and the other buried the ambition to subvert the family in the cold and humiliation. Two black lotuses met in the dark night, blooming only for each other, and were involved in the sword-fighting of the wealthy families - the coldness of the master, the persecution of the eldest wife, the conspiracy of the third wife and the second master... Wanyue and Zhang Hanyi fell into desperate situations again and again, and survived again and again. The two supported each other, step by step towards the pinnacle of power, step by step towards the end where only swords were left against each other. However, Wanyue never thought that Zhang Hanyi had already recognized her, and she didn't know that the person who saved her from the fire many years ago was Zhang Hanyi.