An unknown stranger travels through the troubled times of Handan, where Ying Zheng is in a state of poverty and is often bullied. As a wild boy, he befriends the young Ying Zheng and becomes his only brother.
With no system to rely on and no family background to rely on, he relied on modern thinking and ruthless means to protect Ying Zheng in the crisis, eliminate dissidents and clear obstacles for him, and soaked up the blood of the First Emperor in the shadow of his sword. Following Ying Zheng's return to the Qin Dynasty, he took charge of the dynasty, and went eastward. He made plans and killed decisively, helping him to sweep away the Liuhe, swallow up the eight wastes, step by step, break down the barriers of the six countries, and finally become the unification of the Qin Dynasty.
In this life, he is his brother, protecting him from being a hostage on the streets of Handan, to becoming the First Emperor who rules the world; in this life, he is a blade, cutting off the thorns in his path for him, staining the country with blood, and jointly building the Qin Dynasty's thousands of miles of territory.