😋I have a novel that suits your needs very well: The Story of Raising a Concubine. The female protagonist of this ancient romance novel was poisoned to death in the Cold Palace in her previous life. After she was reborn, in order not to live in vain, the female protagonist began to change. Not only did she become the new emperor's grower, but she was also reborn to lay the foundation for herself. In the end, she rose to become the empress with a powerful vengeful attitude. I hope you like my recommendation.😗