The highest realm of urban novels was usually to combine reality and fiction to create a virtual world that was both real and full of imagination. In this world, the protagonists experienced all kinds of life experiences, met all kinds of strange people and events, and explored human nature, society, politics and other aspects. Metropolis novels often focused on describing the protagonist's emotional entanglements, interpersonal relationships, and other elements as the core of the story. At the same time, urban novels often involved some social problems such as the gap between the rich and the poor, social injustice, crime, political corruption, etc. These problems were reflected and discussed through the experiences of the protagonists. In terms of story plots, urban novels often had dramatic conflicts and twists, as well as suspense and reversal plot designs to keep readers interested and looking forward to the story. Generally speaking, the highest realm of urban novels was to reflect and explore the problems in the real world through fictional stories, and at the same time create a world full of imagination and realism so that readers could feel the resonance of emotions and humanity.