Scrap heaps
Mecha wrecked in upper leagues, lab rejects, castoffs from private estates. Lin Mo found Xingtong here.

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Five-element resonance, civilizational divergence. Seven city-states · Five factions · UCDC League · Combat systems
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Five-element resonance, civilizational split. Seven city-states · Five factions · UCDC league · Combat ratings
THE UNDERWORLD CODE · Where the temple cannot reach
UCDC designed the world as a pyramid. Nine-tenths of humanity live beneath it—not inside it. They play by another set of rules in the pyramid's shadow.
No CRV, no league, no dignity. Only three things: the scrap yard, the pawnshop, neon street. And one phrase everyone whispers—Don't die.

Mecha wrecked in upper leagues, lab rejects, castoffs from private estates. Lin Mo found Xingtong here.
Old artisans who listen to dead cores like patients—unofficial craftsmen outside the UCDC lineage.
Where people without CRV or identity cluster. They distrust each other—and keep each other alive.
No officials, no league. Win and take the wreck; lose and pay with your life.
This is where the Blood Mill began.
「In Rustgulf, every piece of scrap still breathes. Those who can hear it won't starve.」 —The pawnshop elder
Every alley in the seven city-states has one. No sign—only a core slowly turning in a glass jar. Before you enter, leave 「who I am」 outside the door.
①
Pledge cores for compute / cash / more time
30%–80% monthly
②
High-CRV backers field low-rank fighters—the market calls it 「borrowing rank」
50% per match
③
Pledge the rest of your labor to survive today
Nearly irredeemable
※ Overdue cores may be dismantled, grafted, or resold. ※ Rank brokering, if exposed, draws UCDC punishment—this shop accepts no liability. ※ Lifespan contracts are permanent; regretful signers must find a finger-cutter themselves.
Neon Street doesn't sell decoration.
They sell energy crystals—load into any core, convert instantly into hours of compute.
The elite use them to extend life; the middle class to survive the next league match; the bottom tier—to survive tonight.
| Tier | Name | Traits | Conversion |
|---|---|---|---|
| Basic | Blue | Impure; long-term use corrodes cores and shortens a fighter's life | A meal's wage |
| Mid | Green | Relatively stable output | A week's wage |
| High | Purple | Stable, controllable output | A year's savings |
| Prime | Red | Naturally pure; resonates with the user's emotions | A house |
「⚠ Black-market scrap crystals <5% conversion. Re-refined industrial waste leaves 「crystal slag」 and burns lifespan.」
Outside the UCDC league system—therefore it doesn't exist.
No rules except one: the loser's core is dismantled on the spot.
Before you step in, do three things:
The winner drains every unit of compute from the loser's core—poured straight in, years of life gained at once.
The loser… there is no 「loser」.
Rustgulf stray pits, neon underlevels, pawnshop back rooms—where the Blood Mill is depends on how badly you want to find it.
⚠ The Blood Mill is tolerated by UCDC—it does the temple's dirty work of 「clearing bottom-tier compute」.
In Rustgulf, the past is debt—not story.
UCDC takes your lifespan; the pawnshop takes everything.
Don't wait for dawn. Cores that wait until dawn go cold.
One win won't cover interest; one loss and you become someone else's compute.
「Found」 and 「stolen」 differ only by who witnessed it.
No one teaches you these five. You learn them one by one—with other people's lives.