The heroine is a princess, with a western fantasy background, and all the characters are villains. The outline is a bit broken and the ending is rushed, but it is very tense and the plot is very interesting.
Male background
If darkness and ignorance obscure our eyes, tear them apart; if the wheel of history cannot be reversed, break it.
May 17, 1204, on the eve of the coronation and wedding. History and destiny, I have come to you, I am the blade, I am the storm, I am Cesar Cesaroya.
The title "heiress" sounds wonderful. When a woman is called an heiress, it often means that she is the incredibly lucky person who has no brothers and is loved by her parents. But when she becomes an heiress, the fate she faces is to climb to the top or fall to the bottom, with no middle way. During her childhood and adolescence, she had to sacrifice the carefree and happy time that ordinary noble girls have, work ten times and a hundred times harder than boys of the same age to fulfill her responsibilities, and bear heavier responsibilities than male heirs. She must be stronger, more tenacious, and better than her competitors, coveters, and enemies. Otherwise, she will become a gorgeous trophy after the death of her parents and accept her life that has fallen to the bottom. And even if she is an excellent heir, she is at risk of being replaced by her new brother at any time. As long as her parents give birth to a son, she will lose everything she owns and have to learn to be a man's good wife again after tasting the wonderful taste of power. This may be more painful than failure on the road to power.