Qin Chuan wakes up to find that he has transmigrated to the late Warring States period.
His adoptive father has just died, leaving behind a silk letter from the State of Yan. It solves a mystery that has baffled later generations, while also pushing Qin Chuan to the edge of a cliff.
Was the person Jing Ke had been waiting for all along actually Qin Chuan's adoptive father, who had just died?
To avoid being implicated, Qin Chuan steps forward and saves Ying Zheng, the First Emperor!
But to his surprise, Ying Zheng takes an interest in him because of it.
Ying Zheng: "Qin Chuan, Fusu is too kindhearted. Do you know how to teach him?"
Qin Chuan: "Your Majesty, I know a little!"
Ying Zheng: "Great Qin's treasury is short on funds. Do you know how to make money?"
Qin Chuan: "I know a little!"
Ying Zheng: "The Xiongnu keep harassing our borders. Do you know how to deal with them?"
Qin Chuan: "I know a little..."
And so, the twenty-first century lost an insignificant ordinary man.
Meanwhile, Great Qin, whose fall once seemed inevitable, gained a man capable of changing its fate!