In 904 AD, the Tang Dynasty fell and the world was in chaos.
Fourteen-year-old Li Yan picked up a copper ball by the Hanzhong River. The copper ball is called Huntian Shu, and it is the legacy of a long-dead super civilization. It can absorb "civilization energy" - war, conquest, construction, invention, any behavior that can promote the progress of civilization can be converted into energy. With enough energy, you can unlock knowledge far beyond your time.
Start with a better knife, start with a trench that can stop bandits, start with a city where good people can live and work. Li Yan led Hun Tianshu and a group of ordinary people who believed in him to rise step by step in troubled times.
Unify Bashu, compete in the Central Plains, cross the sea, conquer America, and finally sail to the depths of the Milky Way - where there are enemies that destroyed the previous era, and there is also the fate that Hun Tianshu must return to.
This is a story about civilization, about struggle, and about how a young man spent a thousand years writing the word "human" into the sea of stars.
