In order to clear the name of the late crown prince, the rough and illiterate female general Wei Lin begged for the beautiful and sickly son of the Gu family, Gu Mingzhu, at the cost of hurting the enemy by a thousand and hurting herself by eight hundred. However, she found out that the beautiful and sickly son was fake and the yandere villain was real. The ruthless leader of Ling Pavilion, Jiang Juan, pretended to be Gu Mingzhu and married into the general's mansion in order to steal the Yanyu to cure her illness, but she didn't want to sacrifice her true love.