Archaeologist Jiang Liushi transmigrates, not to become a prince in the imperial palace, but to be kicked onto a Qin Dynasty construction site where the Great Wall is being built.
There is no romance of clashing swords and charging horses here, only bones cracked by frost, overseers who treat people like prey, and a shocking secret erased from official history, built from the flesh and blood of a million convicts.
When modern archaeology collides with the Qin Dynasty's "infrastructure maniacs," he thinks he can use his knowledge to change his fate. But then he discovers that what he is building with his own hands is a "stairway to heaven" leading to another world...