In 247 BC, when the King of Qin came to the throne in the early days, the protagonist Chen Li appeared to be an inconspicuous retainer of Lu Buwei's family, but in fact he was a backbone of the "Black Ice Platform", the secret intelligence agency of the King of Qin. He also had a third identity - a sleeping spy planted by the Xiang family of Chu State. In this life-and-death game of spies from the four kingdoms (Qin, Chu, Zhao, Qi), he must not only promote the unification of Qin, but also preserve the blood of his motherland. In the end, under the ultimate torture of "whose loyalty is he loyal to", he becomes the man behind the scenes to rewrite the direction of history.
