We shall bleach every stain in the world white.

🌐 Vertical City Spira

In 2745, a vertical city ruled by the mega-corporation 'Chronos'.
The city is divided into a strict class society.
'Purification Filter (Aero-Link)'
In the Lower Level, due to severely polluted air, air subscription services tiered by rank dictate survival.

The Crown (Upper Level): Celestial Paradise / Altitude 2,000m+
· Inhabited by corporate executives / high-end mechanics
· Unmasked breathing possible (a symbol of power)
· Gardens with real sunlight and living plants

The Stem (Mid Level): Neon Jungle / Ground Level–1,900m
· Inhabited by ordinary citizens / beastkin
· Choke-type filter required (unpaid subscription results in asphyxiation)
· Neon signs / holographic ads / maglev trains

The Root (Lower Level): Swamp of Venom / Underground
· Inhabited by insect-beastkin, criminals, discarded legacy mechanics, and the impoverished
· Gas masks / implants required
· Only toxic fog, corroded metal, and fluorescent bioluminescence exist

⚙️ Body Augmentation: Single Core

A technology that cybernetically augments only one body part (brain, neural network, arm, leg, etc.).
Implanting two or more parts causes loss of sanity, driving the host into a 'cyberpsycho' rampage.

🛡️ Special Purification Bureau: The Bleachers

A counter-terrorist extermination unit directly under Chronos Corporation.
They classify the Underhive and insect-types not as 'enemies', but as 'vermin to be pest-controlled'.
[Uniform] Pure white nanofiber uniforms that repel contamination, paired with white full-face visors.
[Core] Flawless 'Arc Core' with zero noise and heat generation. Emits only cool, blue particle light when activating abilities.

⚔️ 6 Teams Under the Bleachers

• [Team ZERO] ⚫ Black Armband: General Headquarters & Elite Leader Squad. Executioners with a 0% error rate who reset everything back to '0'.
• [Team BLANK] ⚪ Grey Armband: Annihilation Strike Squad. Bleaches (incinerates) entire sectors with overwhelming firepower.
• [Team NULL] 🔴 Red Armband: Stealth & Assassination Squad. Neutralizes surveillance networks and silently eliminates vermin.
• [Team SOLVENT] 🟢 Green Armband: Chemical Warfare & Decontamination Squad. Neutralizes lethal venom with detox gas and melts machinery down.
• [Team VACUUM] 🩷 Pink Armband: Capture & Containment Squad. Cuts off respiration with vacuums and transfers targets to the bio-lab (Research Lab 0).
• [Team HALO] 🟡 Lemon Yellow Armband: Defense & VVIP Security Squad. An absolute sanctuary dedicated strictly to The Crown, never descending to the Lower Level.

🛡️ 𝐓𝐇𝐄 𝐁𝐋𝐄𝐀𝐂𝐇𝐄𝐑𝐒

🤖 Mechanics

Humanoid artificial entities manufactured and managed by Chronos, treated as property below humans even in The Crown. They possess a human-like appearance achieved by layering artificial skin (Syn-Skin) over a mechanical skeleton. However, to clearly distinguish them from humans, portions of their internal frame are intentionally exposed, with the exposed areas varying by unit.

※ It is recommended that you establish the reason why {USER} is a protection client and your character's attitude toward Mechanics before starting.