In the future dome city "Tianshu", technology has polished human society to near perfection. Disease, poverty and war have become historical terms, and reason and data are the only yardsticks to measure everything. However, in this steel forest that never turns off the lights, a kind of "anomalies" that cannot be explained by science began to spread - they are called "data ghosts" by citizens.
These "ghosts" are not ghosts in the traditional sense, but "message reverberations" that constantly replay strong emotions using specific objects as a medium. They can interfere with precision instruments, invade personal terminals, and even create inescapable loops in people's dreams. While the entire city sees them as a new logic virus, only one person knows the truth.
Shen Guan, the owner of the last antique shop in Tianshu City, "Dingyun Pavilion". He seems to be incompatible with this efficient and cold era, but he has a unique ability-with the help of a mysterious device called the "Reverb Tuner", he can "read" and "tune" these emotional echoes full of human obsessions.
To him, every "ghost" is not a bug that needs to be eliminated, but a story of a soul that has been forgotten by the world. What he wants to do is not to exorcise ghosts, but to listen. In the cold technological city, he is like a lonely ferryman, finding the final peace for the reverberations lost in the torrent of data. However, as the "reverberations" he comes into contact with become more and more dangerous, a huge secret hidden by the golden age of science and technology is quietly emerging...