Xie Yunyi, the legitimate daughter of a general's household, waited three long years for her fiancé, Shen Feibai, only to see him return to the capital in grand fashion with a foreign princess, Wuyina, in his arms just before their wedding. Humiliated in public, she realizes that the childhood sweetheart she once knew has become a man full of schemes. Facing Shen Feibai's betrayal and Wuyina's provocations, Xie Yunyi refuses to endure any longer. Carefully plotting every move, she cleverly breaks off the engagement, exposes the conspiracy behind the Uyghur marriage alliance, and joins forces with Wuyin, a hostage prince secretly biding his time. Together, they turn the tide. When evidence of Shen Feibai's treason is made public and the emperor's true face is finally exposed, Xie Yunyi takes control of the empire as a woman, protecting her homeland and its people while granting the loyal souls of fallen heroes their final peace.