In the last years of Chongzhen, the Hou Jin cavalry knocked the pass, and the Ming army retreated steadily. Modern military engineer Zhao Shuo's soul passed through the border army's petty officials and presented the red cannon pattern and the secret casting method in a desperate situation. Chongzhen named him the Marquis of Zhongyong on the spot and ordered him to supervise the construction of new cannons. Female general Zhou Yingxue went from being suspicious to working side by side, training firearms battalions and designing fortifications with Zhao Shuo. Fan Wencheng, a counselor of the Later Jin Dynasty, repeatedly sent people to sabotage the situation. Chen Yuanyuan, who was in Donglin, secretly disrupted the situation. The eunuchs in the DPRK and Qingliu fought for power. Zhao Shuo used artillery as a fulcrum to stir up the lifeblood of the decadent dynasty, but found that he would eventually become a key piece in rewriting history - either saving the Ming Dynasty or reshaping the world.
