In her previous life, Lady Shen Rong, a titled noblewoman, was turned into a human swine by her impostor daughter, Shen Qingying. Reborn on the eve of Qingying's coming-of-age ceremony, she secretly searches for her biological daughter Yun, who bears a crescent-moon birthmark on her collarbone, and bestows upon her the name Shen Yunzhu. Step by step, she exposes Shen Qingying's schemes. Qingying conspires with the Crown Prince to seize military power, while Shen Rong joins forces with the Fourth Prince to bring the Crown Prince down and imprisons the wicked Shen Qingying inside an urn. In the end, Shen Yunzhu marries the new emperor and becomes empress, Shen Rong enjoys honor and prosperity, and her revenge is complete.