High school student Hongyu, a modern teenager with an obsessive love for history, was thrust into the vortex of time and space by the giant hand of fate after an accident, traveling back to the Qin Dynasty more than two thousand years ago.
When he first arrived in the Qin Dynasty, he faced a completely unfamiliar and hierarchical social environment. He was panic-stricken, but also lurked in excitement because he was familiar with this period of history. Relying on the rich historical knowledge and modern thinking in his mind, he embarked on a unique legendary journey in the Qin Dynasty.
Hongyu was able to get close to the center of power of the Qin Dynasty by virtue of his understanding of Qin Shihuang Yingzheng. He used modern wisdom to give unique insights in agriculture, military and many other aspects. For example, modern farming concepts were introduced to increase grain production; modern military layout was also used to enhance the Qin army's combat capabilities. However, his behavior aroused the dissatisfaction of conservative forces such as Li Si, who made Hongyu difficult at every turn. Under these many obstacles, can Hongyu successfully realize his ambition in Qin Dynasty? How can he write his own legend in this ancient era? Finally, can he find a way back to modernity? Everything unfolds gradually in this time-travel story full of fantasy and rich history.