The book, Ancient Child-rearing Treasure Book, described how the female protagonist, Li Qinqin, in the modern world, had transmigrated to the body of Empress Li in the imperial harem and raised the little princess on her behalf. She chased away the nanny to feed the little princess herself and even wrote a child-rearing diary. One of the plots was that her sister-in-law always fed the little princess in front of her. I hope you like this fairy's recommendation. Muah ~😗