Lin Yue, a graduate student in the Department of Modern History, accidentally traveled to the Qin Dynasty in 221 BC, just when Qin Shi Huang unified the six kingdoms. Relying on his solid historical knowledge and modern thinking, he survived in the cracks of the harsh Qin law, and gradually became a key figure influencing the direction of history from a commoner. However, he soon discovered that the history here was not exactly the same as what he had learned.