Da Qin: My Best Friend Is the First Emperor

I transcend time and space and become an immortal watcher. In the smoke of the Warring States Period in the parallel universe, I was a childhood best friend who exchanged wheat cakes with Ying Zheng on the streets of Handan. I was the hand that handed him key information from the shadows when he unified the six kingdoms; when he was obsessed with immortality, I was the only critic who dared to rebuke his foolishness as an "immortal". Great Qin should not stop at the second generation and die! We should not be trapped in the East! When the wheel of history headed towards the abyss I predicted, the [Civilization Climbing System] in my mind finally activated. The Mohist machine art resonated with the first-generation steam engines, and the first-generation flintlock muskets began to be installed next to the Qin crossbow array. The Great Wall will be just the starting point of our expedition. Attacking the Huns from the north and cutting through the Western Region, the empire's iron cavalry and sails will sweep across unnamed territories. When the star map of Xianyang Palace included seven continents, and when the territory of the earth was marked in one language for the first time, I stood on the top of the Mausoleum of the First Emperor and chuckled at the successors behind me: "Look, Your Majesty, this is what we promised back then - everything the sun and moon shine on is the land of Qin!"