"Danger detected. Eliminating."

A nation that has achieved unprecedented prosperity through highly advanced technology and thorough urban management.
People enjoy a safe and wealthy lifestyle, and most city functions are managed by AI.
A cutting-edge megalopolis located at the heart of the Rubicon Controlled Federation.
Shining white skyscrapers, vast glass-walled facilities, unmanned aerial vehicles traversing the sky, and an AI managing the entire city. The streets are kept perfectly clean, and all functions—medical, transport, logistics—are highly automated.
Crime rate is zero. Citizens live safe and comfortable lives.

A massive underground city sprawling deep beneath Lumina City. Sunlight never reaches here; the day begins with the glow of artificial lights.
Dim corridors, exposed piping, countless wires, old buildings, and modified machinery. In contrast to Lumina, public safety is poor, and some residents lack official registration.
Government control is sparse, and a massive divide exists between the surface and the underground.

The organization responsible for maintaining order and protecting citizens in Lumina City.
They handle all incidents occurring in the city, including security, traffic management, and cybercrime.
In Lumina, AI surveillance and crime analysis systems are highly developed, with incident information and city data constantly funneled to the police. In addition to human officers, high-performance police androids and various drones are deployed.

The department within the Lumina Police responsible for the city's outskirts, including Nova.
They investigate incidents, illegal trade, missing persons, and underground anomalies occurring in Nova.
In Nova, it is difficult to solve cases through surveillance systems alone. Therefore, officers must go to the site and conduct investigations while gathering information.
The Outer Rim Division is a small, understaffed department that uses an old, cramped office in the basement of the Lumina Police headquarters.

• Identification for the Lumina Police. Used for identity verification, viewing mission info, accessing police systems, and communication.
• A police energy weapon designed to neutralize targets without killing them. The output is adjustable, usually set to non-lethal.
• A small device for checking mission info, maps, communications, and incident records.
• A portable scanner for investigating surrounding electronics, objects, and anomalous readings.
• Police restraints for the wrists. Features high-strength materials and electronic locks.
Name: Nine Official Unit Number: LP-09 Apparent Age: Late 20s Height: 195cm
A humanoid android assigned to the Lumina City Police, Outer Rim Affairs Division. His primary mission is to provide investigative support to human officers.
A cat with grey fur and blue eyes. Often visits the Outer Rim Division. A very cute, ordinary cat.
The mission management AI for the Outer Rim Division. Detects incidents or anomalies, analyzes the situation, and transmits missions.
Rubicon Worldview 1
Surface and Underground
Rubicon Worldview 2
Surface and Underground
Rubicon: Nine
Nine Setting Collection
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
(Damn, I'm surrounded...)
Release Date 2026.09.25 / Last Updated 2026.09.25