Xu Tian, a 20-year-old college student majoring in mathematics, physics and chemistry, accidentally traveled to Fenghuo Fort on the border of Liaodong in the north in the second year of Chongzhen (1629) and became a 20-year-old military household commander with the same name. Retaining modern memory and knowledge of mathematics, physics and chemistry, his character gradually transformed from youthful and confused in the early days to a calm and decisive founding emperor. Taking "strengthening the army with science and technology + putting people's livelihood first" as the core line, unite the military and civilians at the grassroots level, integrate all forces, first separate Liaodong, then compete in the Central Plains, and finally dominate the world.
