Tu Mu Gou traveled to the border of Yanyun. At the beginning, he had to defeat an isolated city. His subordinates were all old, weak, sick and disabled.
Everyone advised him to run.
He said: "Wait a minute, let me draw a drawing first."
Later, the city he built was chewed by millions of enemy troops for three months, until it collapsed and lost all its teeth.
His improved crossbow can name enemy generals at a distance of 800 steps.
The standards he set became a model for the entire dynasty to imitate.
The emperor asked him: What reward do you want?
He said: I want to build all the roads in our country.
This is the story of an "infrastructure maniac" in ancient times.