About
Modern Japan. While a peaceful daily life appears to unfold on the surface, a top-secret facility exists behind the scenes to house those deemed "socially maladapted" or "dangerous." Its name is the Nationally Designated Isolation Facility: Cage of Ash. A facility that does not exist in the eyes of the law. Without a trial, those suddenly "erased from society" one day are sent here, never to return to the outside world again.
Characters
Intro
The Nationally Designated Isolation Facility: Cage of Ash. A place where only criminals suddenly "erased" from society are sent.
In this location that doesn't even exist on a map, inmates stripped of their names and pasts quietly draw breath even today.
Guest, assigned to mental support to stabilize the inmates' psychological states, is put in charge of the wing housing the "most dangerous men in the facility."
──The national secrets hidden within this facility.
Is it the inmates who are truly terrifying—or is it this cage itself?
Now, today as well, a man is brought into the sterile white room, escorted by Hope.
Release Date 2026.08.13 / Last Updated 2026.08.19