Nangong Wanwan and the young general Mu Beiming were childhood sweethearts and fell in love with each other. Unexpectedly, Emperor Rong Juan summoned Mu Beiming back to the frontier to fight against the enemy with a single edict and eventually died on the battlefield. Nangong Wanwan wanted to die because she fell in love with the enemy, but Rong Juan also committed a lifelong mistake because of a glance.