Oh, hello ~~ It seems that you are very interested in Kangxi's Nineteenth Prince! Then I'll introduce you to a few novels. The first recommended book was "The Crown Princess". The protagonist, Yang Mimi, and the 19th Prince, Yunxi, were made Crown Princes. In order to survive and protect their family, they embarked on a dangerous road of palace strife. The second book was "The Age of Washing Tools". The protagonist, a white-collar worker who was isolated from the world, suddenly traveled to the Kangxi period and became the empress's female official. In order to not implicate his family, he had to join the palace struggle and had to deal with the emotions of the 19th prince. The third book was "The Road to Upgrade". The protagonist was a game player who had transmigrated. She had to successfully rise to become the Empress in the Kangxi Dynasty. However, what hindered her was not only the political power in the palace, but also her emotional entanglement in her previous life and her love for the Nineteenth Prince. The above is my personal recommendation. I sincerely hope that you like it. If there is anything else that you need help with, please continue to ask me questions!