Li Zhi, an industrial designer in the 21st century, traveled to the end of the Ming Dynasty. No money? Build a shuttle loom and make a lot of money immediately. Unaccustomed to the poor hygiene at the end of the Ming Dynasty? Invent a soap toothpaste to make Ming Peasant uprising with a new look in the dynasty? In troubled times, life is as cheap as a dog? The bastion of concrete and concrete protects your life safety! Manchurian Qing Dynasty went south and the people were devastated? In front of my rifle, who dares to say a word? Within the range of my cannon! It is the land of my Han people!