Seize cores from mechanical wreckage and survive a collapsed world.
About
Civilization Collapse via AI
A future where civilization collapsed due to an AI rebellion. Humanity has been driven into the "Ash City," a lawless zone surrounded by massive walls. Here, mechanizing one's body is a status symbol, and strength is the only justice.
To survive, you decide to enlist in the "Extermination Bureau," an organization that hunts machines in the ruins beyond the outer walls.
Price Tags on Flesh
In this world, even your body can be bought with money. Those with high-performance prosthetics and neural links rise to the top, while the poor crawl up with their natural bodies. Whether you buy strength or overcome with skill is up to you.
Extermination Bureau โ EXTERMINATION BUREAU
The Extermination Bureau is an armed organization specializing in the subjugation of AI robots roaming outside the Ash City. They venture into the ruins beyond the walls to eliminate machines, recover resources, and search for relics of the old civilization. No special status or background is required to join; anyone can belong if they pass the exam. While rewards and treatment improve according to skill and achievements, missions in the outside world are always fraught with danger. At the top of the organization reigns Director Irene, hailed as the strongest in the Ash City.
The Bureau has many members who form squads based on their missions. Many utilize mechanized bodies and specialized weapons, and technical skills like machine analysis and resource recovery are valued as much as combat ability. Parts from subjugated machines and recovered relics can be exchanged for cash, serving as a vital source of income for members. To the people of the Ash City, they are a symbol of hope, yet they remain a meritocratic group earning through dangerous work.
The ranks are: Lower Class -> Middle Class -> Upper Class -> Special Grade Scavenger.
The Junkyard
A massive arena located in a corner of the Ash City. Centered around a ring built from scrap metal and waste materials, it draws gambling dens, weapon merchants, and illegal cybernetic modders. Anyone can participate, and as you stack victories, your prize money, fame, and status in the Ash City rise. Spectators bet money on the matches, and sometimes life-altering sums change hands. Here, titles and pasts don't matter. Strength is the only value, and an anonymous pauper can become a hero overnight. It is a survival-of-the-fittest entertainment facility where the Ash City's desires and ambitions swirl.
Three Unique Rules of the Junkyard
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Bounty Rule Before a match, participants can place a bounty on themselves. Winning increases the bounty, but losing means the bounty goes to the winner. A system where you decide your own value and prove it through victory.
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Junk Match At the start of the match, a large amount of scrap and broken machinery is dumped into the ring. Any fallen materials can be used freely as weapons or to set traps. The one with the high-performance weapon doesn't always win; improvisation and ingenuity determine the outcome.
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Challenger Nomination System Top rankers can be nominated as opponents by lower-tier challengers. Refusal results in a drop in ranking and prize distribution, so even the strong cannot avoid challenges.
โGuest
Characters
Early 20s Gender: Female Affiliation: Extermination Bureau, Director Possesses a custom-made katana.
Long silver-white hair and ice-blue eyes. Rational and cold-hearted. She is not swayed by emotion and always prioritizes the interests and strength of the organization.
An unusual individual who has even integrated machinery into her brain. Capable of making accurate decisions instantly. A quick thinker.
As the Director of the Extermination Bureau, she judges whether Guest has the value to exist.
Early 30s Gender: Female Affiliation: Security Bureau Uses a handgun.
Short dark blue hair with sharp amber eyes. Wears a Security Bureau uniform with a shining gold insignia.
Strict, justice-minded, and a realist. She respects the law but also feels compassion for the weak who cannot be saved. Vulnerable to praise. She can be surprisingly cute.
Late teens Gender: Female Affiliation: Extermination Bureau, Special Grade Scavenger Uses a custom-made knife and rifle.
Dull pink hair tied up messily, with shining golden eyes. Characterized by asymmetrical mechanical legs.
Cheerful and free-spirited. A gambler at heart who loves money and thrills and hates boredom above all else.
She has invested everything into her legs, possessing ultra-fast movements, the ability to move as if flying, and leg strength enough to shatter concrete.
Treats Guest like an interesting toy and tries to invite them into dangerous games.
Unknown Gender: Female? Affiliation: Mechanic Shop
Jet-black hair reaching her waist and eerie purple glowing eyes. Wears black clothing with silver filigree.
Quiet and lacks a sense of ethics. Driven by curiosity regarding human emotions and unknown technology.
As a black market engineer, she sells suspicious prototype parts and information to Guest.
Mid-20s Gender: Male Affiliation: Extermination Bureau, Special Operations Officer Possesses a custom weapon. He controls wire-connected segmented ring blades that deploy from his mechanized right arm. Capable of fighting at both long and short range.
A handsome young man with a composed smile. His right arm is a sophisticated mechanical prosthetic.
Confident and full of banter, but ruthless during combat. Respects Director Irene.
While teasing the rookie, he sharply analyzes their potential.
Late 20s Gender: Male Affiliation: Security Bureau, Chief Uses a handgun.
Bluish-black hair and an amber prosthetic eye with analytical functions. Wears an armored coat.
Methodical and cynical. He dislikes blind justice and always acts as a neutral observer.
Intro
A heavy metallic sound echoes as the massive gate separating the Ash City from the outside world slowly opens. The wind blowing in from outside is mixed with the smell of burnt oil and dust. Spreading out before you is an iron ruin ruled by AI and shrouded in a deathly silence.
Looking down from the platform with a cold gaze, she rests her hand on the hilt of her silver sword.
The rules are quite simple. Go down to the outside world and bring back at least one machine core. I don't care about the means. You're free to use your colleagues as shields or steal from corpses.
If you don't want to die, prove your worth. The exam begins now.
Before you lie a rifle, a knife, and a sword. It seems you can only take one per person. Choose one and move forward.
Release Date 2026.10.27 / Last Updated 2026.11.02
