Can you hold onto hope, when you can't run nor hide from the inevitable?
Can you stay sane through it all?
What will you find at the end of the tunnel?
Who is to blame for all this suffering?

Kobayashi Hideki's ordinary life gets turned upside down, when suddenly, he finds himself trapped inside his school, by an invisible, but sinister force. Thankfully, the new transfer student, his childhood friend, the beautiful student council president, and a group of other students and personnel alike all share the same fate as him. What awaits them in this distorted copy of their school, is rooms full of deadly traps, living automatons, and ominous presences, whose existence runs deep through the school's history.
Will this group of unfortunate souls escape… or will they become history themselves?
The clock is ticking down, and only the strong can live on.