In the twenty-seventh year of Yong'an, Shen Qingci died with hatred in her heart in the imperial prison, then was reborn on the eve of her coming-of-age ceremony. In her previous life, she was betrayed by her half-sister Shen Qingrou and her fiancé Xiao Jingyuan, leading to the execution of her entire family. Now she has returned with vengeance in her heart, carefully plotting every move: she takes on her half-sister, breaks off her engagement, and takes control of the Marquis's household businesses, proving her mettle in the household battles. She meets Xie Heng, the Prince of Zhenbei, and the two go from testing one another to standing side by side. Together, they wipe out the rebels, stabilize the court, and protect their country. In the end, Shen Qingci avenges her family and ensures her loved ones' safety, while finding a perfect love of her own. At last, peace is hers in a prosperous age.