The male protagonist traveled to the Qin Dynasty and used modern knowledge and rudimentary technology to help Wang Jian conquer and destroy other countries. The main body of the story follows the historical line structure, adds artistic rendering, enriches historical events and war scenes, intersperses the help and love stories of the male protagonist and the three female protagonists, introduces and borrows modern advanced combat concepts, improves bows and crossbows and other weapons, reforms the government, creates a powerful Qin Empire, and after unifying the six kingdoms, the male protagonist and the three female protagonists retire perfectly.
