Xu Che opened a clandestine clinic in the Cyber slums. On his first day on the job, he was blocked by three major gangs. The prosthetic bodies they had spent a lot of money to transform had all fatal flaws that he could see at a glance. People outside were frantically grabbing military-grade prosthetics, but he calmly made a cup of motor oil for the androids he picked up: "The ones they installed are all B-class defective products that leaked out from me." The gang was furious, and the boss wanted him. Until that day, an out-of-control SSS-level murder weapon was delivered to him... It knelt down and made a mechanical trill: "Dad."