Wen Si was originally the legitimate daughter of the Zhenguo Duke's Mansion, cherished by her father and brothers. However, after the adopted daughter Wen Yue entered the household, the affection of her father and brothers shifted entirely. The adopted daughter schemed against her until she was miserably plotted to death and reborn. At her coming-of-age ceremony, Wen Si tore off everyone's disguise, actively called off her engagement, used her mother's grace to beg the emperor to be conferred as a holy maiden, retreated into the Shuiyue Taoist Temple to cultivate, mastered medical skills and toxicology, and developed mutual feelings with the Regent Bei Chenyuan, who had helped her in her childhood. Subsequently, Wen Yue's evil deeds were exposed one after another, and her father and brothers finally discovered Wen Yue's true face, repenting and begging Wen Si for forgiveness!