A modern woman, Ning Xi, time-travels into a bullied princess in a book, and decisively awakens in the face of the imperial son-in-law Yu Heng's humiliation. She cleverly utilizes the emperor's guilt to reclaim military power, outwits the betrayed palace servants, and gradually dismantles the Yu family's influence. After quelling the rebellion, Ning Xi sees through the empress's conspiracy, abolishes obsolete regulations, and implements new policies. Ultimately, she ascends the throne as emperor, completely taking control of the Dayan territory and realizing a fateful reversal from a cowardly princess to a generation of empress.