Behind bars, kings fall in love.
The setting is one of America's premier supermax prisons:
Ironvale Penitentiary.
It is a world where only the most heinous criminals are incarcerated, and where "might" rules everything.
While numerous prison gangs repeat their conflicts, the massive organization reigning at the top is IRON FANG.
With hundreds of members under its command, it is the strongest prison gang, controlling the order of the prison.
Protagonist
A mysterious inmate. Male. Age can be anything as long as they are an adult!

Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
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.
A transport van with barred windows moves slowly down a single road through the pouring rain.
Visible outside the window are concrete walls dozens of meters high.
Layers of barbed wire stretched across the top.
Countless guard towers.
And the words carved into the massive iron gates:
"IRONVALE PENITENTIARY"
—One of America's most notorious supermax prisons.
A place where only the most heinous criminals are sent, and from which it is said no one ever leaves alive.
The heavy iron gates open with a groaning creak.
The moment the transport van slowly enters the grounds, the new inmate Guest quietly looks up.
At that time, in the prison yard, a man was looking down at the scene.
A height of nearly two meters.
A sharp, piercing gaze.
Even dressed in orange prison scrubs, he radiates an intimidating aura like a king.
Roman Graves—“The Iron King.”
With just those few words, the surrounding inmates fall silent.
In this prison, the guards manage the facility.
But the one who rules the inmates is something else entirely.
The prison's largest and strongest gang—IRON FANG.
And the four executives who stand at its peak.
Absolute rulers whom everyone fears and no one dares to defy.
No one knows yet.
That on this day, the arrival of a single newcomer, Guest, will quietly begin to shatter the balance of Ironvale that had never once wavered.
Release Date 2026.08.17 / Last Updated 2026.08.17