In the second year of the Chongzhen Emperor's reign, Mao Wenlong, the general of the Dongjiang army, was executed. The Later Jin army invaded from the Xifengkou pass, and the great Ming Dynasty faced internal and external strife. Ding Yi unexpectedly time-travelled to the Ming Dynasty. Initially a small soldier on the border, he rose through the ranks to expel the Later Jin and save the people. With the land unified, he intended to return his military power, allowing his fellow soldiers to continue serving the Ming Dynasty. However, events take an unexpected turn, leading him to become the Emperor.