Republican Era: Starting with a Failed Salt-Brokering Venture

Two total solar eclipses, separated by ten thousand miles and a hundred years, accidentally transport an ordinary middle-aged man to a chaotic era. To cover up his mistake, Xiaoxin, the System assistant, gives him a temporary job as a sales clerk. But the method he originally used to fob the man off ends up trapping Xiaoxin too.

(Note: If you can't wait, you can start reading from Volume Two!)