Introduction: The male protagonist Lin Zhinan appears to be the owner of a model shop called "Old Time" in the slums of Night City, but in fact he is a top profiling genius hidden by the police. In this future where prosthetic modifications and brain-computer interfaces are rampant, as long as there is a network, there will be traces. Lin Zhinan accidentally awakened the "Eye of Data Analysis" (Golden Finger). Not only can he see the structural weaknesses within objects, but he can also perfectly recreate the crime process in his mind like building a model by capturing the electromagnetic waves and emotional particles remaining in the air.
He partners with Shen Qing, a violent female police detective who was sent down for investigating mysterious cases. Starting from the initial "prosthetic body out-of-control serial murder case", Lin Zhinan made sophisticated "criminal recovery models" to identify the real culprits and cracked the "perfect crimes" covered up by the plutocrats one after another. As the investigation deepened, they discovered that all the cases pointed to an immortality plan called "Mechanical Ascension", and Lin Zhinan's lost childhood memory was actually the key to unlocking this plan.