I, Emperor Qin Shi Huang, Make Money

The protagonist was squeezed by capital and worked overtime until his sudden death. His soul traveled back to the Qin Dynasty and became Emperor Qin Shi Huang. He then focused on making money, worked hard to govern, attacked the Xiongnu to the north, and conquered Baiyue to the south, unifying the earth and achieving the goal of using only one language and writing worldwide.