I had just stayed up all night to finish playing the mobile game Qin Empire, and I was dressed as a gatekeeper in Xianyang City. Just as he was worrying about how to meet the First Emperor to propose plans to strengthen the country, he unexpectedly stopped a sneaky alchemist at the gate of the city. The overseas "immortal map" found on his body made my pupils tremble - it was clearly a map of the world! Ying Zheng looked at the territory on the map that was a hundred times wider than the Great Qin, and tapped the dragon chair with his fingertips: "Six Kingdoms? Too small." Three years later, the Great Qin cavalry crossed the Bering Strait, and black flags were planted on the Roman city walls. It wasn't until I stood on the top of the pyramid and carved small seal characters that I suddenly realized - the world is unified, how did the tyrant become the master?