Ji Chen was originally an ordinary white-collar worker in Shanghai, struggling to cope with the pressures of work and life. Occasionally, he discovers that there are unknown "imaginary events" hidden in the city. These events are between reality and unreality - making people get lost, change, and even subvert their outlook. After experiencing workplace difficulties, family turmoil, and a series of bizarre events, Ji Chen and several partners gradually mastered the laws of mind control and avoidance, and were led into a deeper exploration of urban alien dimensions by the mysterious intermediary Yan He. Each volume focuses on a main story and connects the independent lines of other characters. As the ten volumes progress, the events escalate and the imaginary phenomenon gradually spreads to the whole city. Personal destiny is closely related to the future of the city. In the end, Ji Chen and others will face the ultimate source of imagination and the choice of their own growth.