Upon transmigrating into a book, Shen Jingque resolves to reverse her predetermined fate. Accompanied by her father Shen Yan, she goes to join the Grand Princess of Zhenguo, Xiao Mingyue. The two are met with brand-new opportunities at the princess's estate, resolving heavy crises with their wisdom and stepping forward one step at a time to embark on a path of counter-attack. Amidst their day-to-day companionship, Shen Yan and the grand princess develop mutual affection, reaping a rare bond and staying together in mutual reliance.