Others traveled through time to become princes and marry princesses, but Xiao Yan traveled through time and became the head of the infrastructure department that was the worst in Dayong - taking over the mess, facing the crisis of exile, the only golden finger was the "infrastructure system."
The system gave him the drawings, and he implemented them: building a furnace with clay mixed with iron ore to smelt qualified pig iron; teaching craftsmen to forge "I"-shaped rails to solve the load-bearing problem; and even thinking about using steam instead of horsepower to make the train really "run".
From the first railway from Linshui County to Qinghe Town, it became the main artery connecting the north and south; from solving the problem of autumn grain transportation, to driving the prosperity of towns along the line; from being made things difficult by the county magistrate, to being relied upon by the emperor. Xiao Yan used a railway to change his destiny, used countless infrastructure projects to reshape Dayong, and finally realized his vow of "my railway will connect throughout ancient times".