Liu Hui wakes up to find that he has transmigrated into the role of the Han dynasty's final Administrator of Dai Commandery.
The good news: He has an official post, a city, and women.
The bad news: The city's in ruins, the granaries are empty, and three thousand Xianbei horsemen will arrive outside the walls at dawn.
From the start, he's a dead man.
Just as he's preparing to flee, his bodyguard brings him some news. A county commandant named Liu Bei has beaten a postal inspector and is being chased toward Dai Commandery.