Forty years after the Great Disconnect, humanity has rebuilt its cities under the protection of an intelligent System. Infection is under control, people's lives are secure, and even the memories of the dead can be preserved.
Gu Chuan, a facilities maintenance worker, has always believed in all of this.
Until one day, he receives a distress signal from his younger sister.
She has been dead for three years.
Following the signal into a quarantined hospital, Gu Chuan finds the wards still operating, and people listed as dead still alive. His sister recognizes him, yet possesses memories from before she was born.
When he tries to take her away, a machine carrying out an order from the old world begins hunting them. The city revokes his identity, surveillance records erase his movements, and the facilities he personally repaired begin sealing off their escape routes one by one.
To save his sister, Gu Chuan must uncover the truth behind the disaster. He gradually discovers that between the city, the ruins, and the digital world, countless lives exist beyond the recognition of the current order.
They are called the Remnants of Tomorrow.
