Lin Chen, a graduate student in the Department of History at Yanda University, accidentally traveled to the chaotic Warring States period in 245 BC after touching a Qin-style bronze sword unearthed from an ancient tomb in Handan. At that time, King Zhuangxiang of Qin was newly mourned, and 13-year-old Ying Zheng became a hostage of the Zhao state. The lingering hatred of the Changping Battle made the Zhao people hate Qin to their bones, and the world was divided and war broke out.
Falling from the archaeological site into the bloody ruins, Lin Chen lost his status as a student and hid his modern soul in burlap. In Chencun, where people were dying of hunger, he relied on his modern knowledge of improving the bent-shaft plow and building a pedal bellows to survive, resolve the food shortage and salinization crisis, and win the respect of his neighbors. Encountering the humiliated young man Ying Zheng by chance, he glimpsed the tolerant ambition of the future First Emperor and decided to help him end the troubled times.
Fleeing Handan and sleeping in Xianyang, he stayed step by step in the whirlpool of Lu Buwei's dictatorship and Lao Ai's chaotic government. He used agricultural skills to increase production to gain a foothold, used improved iron tools and crossbow formations to empower the Qin army, and relied on historical foresight to predict the situation, becoming the arm that Ying Zheng secretly relied on. In the court, he worked with Li Si to push the law, and during internal troubles he offered plans to eliminate traitors. On the battlefield, he assisted Wang Jian in sweeping the six kingdoms, and finally helped Ying Zheng unify the world.
When modern wisdom collided with the iron-blooded Qin system, and when refugee counselors counterattacked and became guests of the Qin court, Lin Chen wrote a counterattack legend spanning thousands of years in the torrent of history, witnessing the rise of an empire and the entanglements between monarchs and ministers.
