World view: Near future city (about 2040). The municipal government and the giant technology company "Chuangshi Intelligent Technology" jointly implemented the "Urban Renewal Plan" to popularize smart homes, public surveillance AI, and automated service robots (anthropomorphic appearance, codenamed "Huiying"), making the city efficient and clean. But the protagonist Qin Feng (male, 30 years old, former network engineer, was fired for exposing the company's dirty work, now a freelancer/small shop owner) discovered that there was a terror hidden behind the plan.
