Chen Ji woke up in the dim Shaofu workshop, his soul had changed. Because of his status as a "craftsman", he is incompatible with the numbness and despair around him. The assessment three days later is the only chance to turn around. Through observation, he discovered the efficiency bottleneck of Qinnu machine production, and drew decomposed parts diagrams and assembly line process diagrams on the sand.
This move attracted whippings and scoldings from the supervisor: "How dare you change the Qin law!" This scene happened to be seen by Zhang Han, the Shaofu Ling who was inspecting the palace and was dissatisfied with the progress of the project. Zhang Han's eyes swept across the patterns on the sand, his eyes turning from angry to sharp, and finally rested on Chen Ji's childish but extremely calm face.
"Young man, do you know what is the crime of rashly changing the industrial laws?"
Chen Ji raised his head, neither humble nor arrogant: "Your Majesty, this method can shorten the repair period of the palace wall by half a month."
The gears of fate began to turn.
(This book is slightly more fantasy-like, similar to the world of the Three Seas Sutra)