Transmigrating to the Qing Dynasty: The Beloved Princess Uses a System to Change the Plot

[PS: Please do not nitpick; this contains many personal settings, a fictional Qing Dynasty time-travel story, a system, a beloved character, a destiny-altering plot, and a transmigration into a book.] Mu Yue transmigrated to the Qing Dynasty, becoming Emperor Kangxi's daughter, the Crown Prince's twin sister, and a princess who never existed in history—Tana. At the age of four, she contracted smallpox. After the fever subsided, she regained her memories of her past life. Would her Crown Prince be deposed and reinstated twice? Would her eldest brother plot to kill the Crown Prince? Would her third brother accuse her eldest brother of using witchcraft against the Crown Prince? Thinking about all the events recorded in history, Mu Yue couldn't sit still. Mu Yue: I absolutely cannot let my Crown Prince be deposed and reinstated twice! Mu Yue: I must do something to change the lives of my other brothers and ensure my Crown Prince's smooth ascension to the throne. Just as she...