Two princesses are born the same day in Jing’an Palace. Empress’s daughter Changxi is the predestined Phoenix Maiden, until Noble Consort Rou swaps her Phoenix-Blood Warm Jade, framing her as a jinx. Changxi and her mother spend eighteen years in the Cold Palace. She is then cast away to Shuomo for a marriage alliance. She grows to love Yuwen Yi, lord of Shuomo, and awakens her Phoenix heritage. To free her mother, they journey back to Jing’an. At the grand gathering of kingdoms, they reveal the jade swap plot, clear Changxi’s name, and jointly govern Great Yong and Shuomo.