The former prince Zhao Rong was used as a bargaining chip by the new emperor to humiliate the country and was forced to marry the enemy princess Ashina Yue. On their wedding night, the enemy general was humiliated in public, but Zhao Rong took out a flintlock gun from the dowry box and shot the enemy general's head to pieces, causing an uproar in the audience. Ashina Yue went from shock to anger to curiosity. She discovered that this "trash" husband was hiding a secret that could subvert the world. When the new dynasty prime minister Xiao Yanzhi's assassination order and the enemy prince's vengeful army came to the fore at the same time, Zhao Rong and Ashina Yue joined forces to set off an iron-blooded storm that used firearms to rewrite the fate of the country.