When modern archaeologist Lin Wei was cleaning a Qin Terracotta Warriors and Horses, he was shocked to find that there was a clear and complete fingerprint of an ancient craftsman on its lips. The discovery of this "lip print" shocked the world and launched a secret exploration project codenamed "Lip Print". With the help of technological means and incomplete historical materials, Lin Wei peeled off the cocoon layer by layer and traced it back to a Qin Dynasty craftsman named "Mo Li" - he was superb in skills, but his life was miserable. He suffered from injuries in the harsh labor of the Lishan workshop and lost his best friend Atu. When the First Emperor of Qin died and the craftsmen faced a collective burial, Mo Li followed the mark of the mysterious "ghost hand" and escaped into a secret path leading to freedom.
