Yes, the female protagonist of the book,"After Married to the Prince Regent, I Became the Group's Favorite", Liu Qingqing, traveled to the Kangxi period and married the 18th Prince, Yin, to become the Fujin. This book was an ancient romance novel. In order to make the people who once looked down on her regret it, the female protagonist developed new poisons and searched for new herbs. From time to time, she would protect the female protagonist aggressively. I hope you like my recommendation. Muah ~