A modern young woman, Shen Qiyi, unexpectedly transmigrates into a novel, becoming a cannon-fodder female supporting character who is about to be punished in the Golden Throne Hall. Worse still, her inner thoughts are broadcast aloud for everyone to hear. Using her advantage of knowing the plot in advance, she reveals the truth in court, exposing corruption and conspiracies to collude with the enemy while narrowly escaping one crisis after another. The cold and aloof Regent Prince, Xie Buning, takes notice of this extraordinary woman. Together, they work to stabilize the court, gradually develop feelings for each other through numerous trials, and are eventually granted an imperial marriage. Facing further plots and accusations together, they remain devoted to each other and safeguard the peace of the Great Zhou Dynasty.