The protagonist Li Changan is a modern infrastructure engineer who accidentally transforms into the most miserable prince in history. His Great Xia Dynasty is facing destruction. A hundred years from now there will be a "catastrophe from heaven", foreign tribes will invade, and the mountains and rivers will be shattered. The time of his rebirth was the third day after his father died and he was framed by a traitor and sent to prison. The only golden finger is a "historical reenactment" system, which can see early warnings of major historical events and local minor disasters that will occur in the next hundred years, such as "a fire in the South Street granary in three days", "a severe drought in Qingyun County in the coming spring" and so on. The rules of the system are simple: the response deployment must be completed before the disaster occurs in order to obtain the corresponding "construction points" and "reputation points". Points can be exchanged for skills and supplies, and reputation points can unlock higher-level warning information. Starting from Tianlao, a road of farming and construction began to reverse the fate of the dynasty.
