Underneath the modern city lies a secret world composed of ancient cultivators, those with awakened powers, and spirits and monsters. The "Apocalyptic Age" of thin spiritual energy has passed for thousands of years, but there is still weak spiritual energy that can be utilized in the "leyline nodes" of reinforced concrete in the city. Countless mortal emotions and obsessions have condensed into "wishes" and "resentments", which have become new resources for practice. The protagonist accidentally steps into this world, and while dealing with the pressure of real life in the urban jungle, he pursues the path to immortality, uncovering the secret connection between modern society and ancient inheritance.
