Being pulled into the nightmare of another world,
Very weird school operation,
The frighteningly friendly aborigines,
Why are Level 5 students being taken away?
Where should they go?
Don't stay outside the safe zone,
…
What is going on in this world, what is it...
Maybe everything is a dream, but if you can't wake up...
Concept: Nightmares are too scary, but if you can't wake up, it's really just a dream.