I recommend "Demon Empress, the Painting of the Phoenix in the Imperial Gate", an ancient romance novel, to you! The female protagonist used to be in a high position, but the male protagonist destroyed her country and slaughtered her relatives. Now, she became the most humble existence and relied on the male protagonist's old enemy. In order to make the male protagonist lose everything, she betrayed everything and abandoned the world. After the male protagonist became the high and mighty emperor, she used cruel means to destroy everything the male protagonist had step by step, and finally destroyed the male protagonist's heart. In this novel, the female protagonist is a very powerful character. She can satisfy your needs for the female protagonist to be strong. Moreover, the plot of the novel will abuse the male protagonist. I believe you will like it! I hope you like this fairy's recommendation. Muah ~π