In a modern metropolis with a population of tens of millions, several very different life trajectories unfold in different corners. Gu Chuanyi is obsessed with exploring secret and weird things, Lin Sui'an is desperately trying to repair his sick mind, Qiao Ziye uses the camera to capture strange things, Nuan Nuan is struggling in ordinary life, and Zhang Cheng is planning a series of incredible urban imagination events. As unexplainable and bizarre events begin to occur one after another within the city, various storylines gradually intertwine, constantly pushing everyone deeper into the subtle world of the city. Everyone is looking for the answer to their life in the gap between imagination and reality, and the appearance of the entire city is slowly disintegrating, revealing the appearances and dreams of all living beings under the changing times. Each volume unfolds a main line, and also involves other characters, making the ten volumes both self-contained and interlocking, and finally converge at the final event.