In the near-future cyberpunk city "Xinjing", humans share memories in the cloud through brain-computer interfaces, but the government secretly implements the "Theseus Project" to screen special memories to create immortal AI. There is an illegal memory black market lurking underground in the city, and memory dealers can tamper with other people's life trajectories.
When the memory transaction is revealed to be a government conspiracy to eliminate the rebels, the heroine discovers that her first boyfriend is actually the first-generation immortal AI prototype, and she is the container for him to retain human consciousness.
