After a devastating loss, the country of Yuyao was toppled by Langye's armies. And while crown prince Bai Qingyan has been reduced to nothing more than a prisoner of war, what catches him most off guard is his captor: the new general of the Langye armies and his previous lover, Ji Ning! Angry with Bai for breaking his heart, Ji Ning uses this shift in their roles for some therapeutic retribution.