The story is set in a modern city, and revolves around the protagonist Zhou Xingzhou, his friends, and members of the investigation team, unfolding a series of seemingly bizarre urban "imaginary" story lines that are based on reality: such as the subway with chaotic time and space, suspected virtual reality invasion, the strange evolution of artificial intelligence, the memory exchange of strangers, and unsolved disappearances in the corners of the city, etc. Each volume focuses on an "urban mind" phenomenon. The team must not only investigate the truth, but also deal with the psychological, interpersonal and social impact caused by the incident. As the investigation deepens, behind-the-scenes traces of the "Urban Brain Lab" are revealed, and subtle changes occur in the relationships and life choices among team members. In the end, everyone worked together to reveal the systematic hidden power behind urban imagination, and found a realistic path to redemption amidst growth and thorns.
