(Time travel + system + historical empty frame)
Fusu, the eldest son of the Emperor of Qin, was supposed to be a civilized and responsible person in charge of the country, but he was sent to the border to build the Great Wall by an imperial edict. He is well aware of the cruelty of history: his father Ying Zheng was obsessed with immortality elixirs and would eventually die violently; Zhao Gao and Li Si colluded with each other, Hu Hai came to power, and the Second Emperor of Qin died. He was so distraught that he could only complain wildly in his diary.
"Father, the First Emperor, the pills you take are all heavy metals. If you take them again, they will be gone!"
"Zhao Gao is not a good person! Li Si will betray you! Kill them both!"
"Potatoes can yield thousands of pounds per acre. If you don't go looking for them, why are you staring at the Six Nations Homeland every day?"
Unexpectedly, Fusu's diary was broadcast live to Qin Shihuang in real time!
Ying Zheng: "What? I was deceived by the alchemist? Is Zhao Gao a traitor?"
At first he was dubious, but when the predictions of the golden list came true one by one, from the meteorite falling from the sky in Dongjun, to Lu Sheng's defection, to Zhao Gao's conspiracy to forge the edict was exposed... Ying Zheng couldn't sit still at all.
Overnight, three hundred cavalry rushed to the frontier and "invited" Fusu back to Xianyang to supervise the country's governance.
From then on, Fusu pointed out the country in his diary as a time traveler's prophet, and worked with Ying Zheng and his son to eliminate internal troubles, introduce high-yield crops, reform bad governance, attack the Huns from the north, open up the Silk Road, sail to the sea, promote science and technology and education... He will change his destiny against the will of heaven, lead the Qin Dynasty to an unprecedented prosperous age, and create an immortal beacon of civilization for all ages!