I Am the God of Craftsmanship in the Three Kingdoms

Those who focus on a certain field, devote themselves wholeheartedly to product development or processing in this field, strive for excellence, and meticulously complete every link of the entire process can be called craftsmen. But when you become a master in all fields, people call you a craftsman at that time. I am me, I know nothing. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.