At the end of the Warring States Period, when the art of mechanism was highly developed, the Qin State came to dominate the world and ordered all the Yanshi of the Six Kingdoms to be killed and the classics of the mechanism burned. Gongshu Ming, the last descendant of Gongshu Ban, was chased for thousands of miles by the Qin Army's "Ji Qiao Guards" because of a fragment of a scroll that recorded the "Zhu Xian Organ City". On the way to escape, he met Mo Yuan, the daughter of the Mohist tycoon, and was forced to go with Zhao Ge, the former Zhao scout who vowed revenge. The three of them have their own missions, but they have to work together to decipher the ancient machine diagrams on the fragments and find the legendary self-aware utopia - Machine City. However, when they finally arrived at this dusty city of miracles, they found that its core energy was about to be exhausted, the agencies in the city began to lose control, and the elite troops of the Qin army were already approaching the city. Should we activate the city of traps and perish together with the enemy, or should we hide in the dust and smoke with the fire of civilization? Gongshu Ming must make a choice on the ruins for the last ray of vitality of the mechanism technique.