Lin Mo, 18 years old, looks handsome and silent, but has a tough and even paranoid heart (potentially "crazy critic"). He was the top scorer in the college entrance examination and came from a poor family. In order to save for college tuition and medical expenses for his seriously ill mother, he became a "Nighthawk Rider" on the "Hummingbird Express" platform (specializing in late-night, high-risk, and urgent orders).
World view: Under the surface of the modern city (the fictional "Fog City" or "Haiyuan City"), there are "threshold" cracks lurking. Ancient gods, demons, and evil spirits are not "imprisoned", but fell into silence due to exhaustion of spiritual energy or ancient seals, and are attached to specific "anchors" in the city (old buildings, specific items, individuals with deep obsessions, etc.). Their power leaks out, distorts reality, and forms various urban ghost stories and strange events.