The dust of history, the fireworks of the world. Wang Lei, an ordinary employee, was brought back two thousand years ago by a Qin "half tael" coin and fell into the era of Qin Shihuang's unification of the world. Without a golden finger or a prophetic advantage, he became the most ordinary one among the thousands of Guizhou leaders in the empire. Here, every great achievement in the history books is the reality of survival that he must face: "Books with the same text" are unfamiliar laws and regulations that must be learned well, "Travels with the same track" are endless corvee, and "Great Unification" is increasingly heavy rents and tighter household registration. In the shadow of the splendid palace, he must struggle for food, clothes to cover his body, and a roof over his head. This is not a legend about a hero changing history, but a diary of a modern soul learning to "live" within the ancient rules. Through his confused and tenacious eyes, we see hundreds of millions of ordinary people who are covered up by magnificent deeds - their fears and hopes, loss and persistence, silence and dignity. When the dust of history falls like mountains, can an ordinary person live like a human being in the gap? A survival note dedicated to the unknowns of all times.