Deliveryman Chen Ye is drawn into the conspiracy behind the Nebula System while trying to save his terminally ill younger sister. He awakens an ability to see people's “Life Scores” and joins forces with Su Li, an influencer trapped in a virtual body, and Zhou Mubai, a half-cybernetic venture capital elite. Together, they expose the corporate scam behind Star Source Liquid, which alters human genes, and fight the “Ziwei Hunters,” remnants of a Bronze Age civilization. Using a delivery box to smuggle in a virus, they cripple the System. Earth escapes the crisis for now, but an original Ziwei code appears in Jupiter's rings, and a mysterious pulse is detected beneath the sea. The higher-dimensional “Shepherds” have already locked the seeds of civilization inside a dark-matter cage, and humanity is nothing more than an unapproved defective specimen in a chain of cosmic exhibits.