In the near future city "Xindu", the giant enterprise "Tianqiong Group" controls everything. A catastrophic accident occurred in a consciousness uploading experiment code-named "Tower of Babel", resulting in the death of the chief scientist on the spot. His consciousness was integrated with massive data, and in a forgotten corner of the server, a brand new digital life - "Tracer" was born.
Tracer has no entity, no complete memory, only countless chaotic data fragments and a strong survival instinct. It is drifting in the vast ocean of data, not only to avoid the ruthless "cleanup program" sent by Tianqiong Group, but also to fight against the devouring of other predators in the network. In a desperate escape, it accidentally broke into the private domain of Mo Si, the most famous hacker in the city.
Mo Si was once a core member of the "Tower of Babel" project. He broke with his close friend (the dead chief scientist) due to disagreements in his ideas and left. He originally wanted to eliminate this "virus" of unknown origin immediately, but in the tracer's behavior pattern, he saw the shadow of his old friend and the terrifying truth hidden behind the "Tower of Babel" project. One is a "ghost" who was created, and the other is a "guardian" who betrayed the past. They are forced to form a fragile alliance. In order to survive and take revenge, they will jointly challenge the technology giants that rule everything, and explore the ultimate definition of life at the boundary between virtuality and reality.
