Ergou, the animal king of modern society, accidentally traveled to Daqin and became a precarious little person in the Lishan corvée camp. In order to survive, in desperation, he shouted wild words such as "the yield of grain per mu is ten times" and "building a cart without a horse", and was actually taken to Xianyang Palace to meet Yingzheng, the first emperor of all ages.
He thought he was seeking death, but he didn't expect that he relied on the agricultural knowledge in his mind to build a curved shaft plow and tinker with simple fertilizers. Despite the difficulties of the court officials, he won the experimental field bet, doubled the grain yield per acre, and gained a foothold in front of Ying Zheng.
But the turmoil never stopped. The conspiracy of the veteran Feng Jie, the assassins who sneaked in late at night, Zhao Gao's pressing step by step, and the suspicion of Feng Jie's bizarre assassination drew him into the whirlpool of power in the Qin Dynasty. What's even worse is that the Huns' cavalry is pressing down on the border with one hundred thousand troops, and the border is in a critical situation. Ying Zheng gives him five days to build a repeating crossbow that can turn the tide of the war.
A commoner who travels back in time, possesses knowledge that transcends the times, has to survive in the midst of the emperor's suspicion and the calculations of powerful ministers, while shouldering the heavy responsibility of protecting the country of Qin. Will his appearance rewrite the fate of Great Qin, or will he be unable to escape the torrent of history?
