Lin Chacha, a modern office worker, transmigrates into a book as a cannon-fodder character who won't survive past three chapters. In a moment of crisis, she risks her life by clinging to Mo Yuan, the villainous powerful minister, and calls him "Dad," rewriting her fate. She thinks it's merely a temporary expedient, but unexpectedly, she turns out to be Mo Yuan's biological daughter, who went missing sixteen years ago. From then on, she gains the protection of an entire family that fiercely stands up for its own: an imposing father, an eldest brother who is an assassin, a second brother who is a poison doctor, and a third brother who is the richest man in the land. Domestic power struggles and palace intrigues follow one after another. When the crown prince plots rebellion and the Northern Di invade, she uses her foreknowledge to join forces with the Mo family and resolve each crisis, putting an end to the fighting. Once peace is restored, the family retires to Jiangnan, where they enjoy a peaceful life together. Yet a visitor who has traveled a great distance from the northern deserts reveals another long-buried secret shared by the two countries.