In this thrilling game where only by adhering to the rules can one survive, everyone regards the rules as life-saving charms, abides by them carefully and believes in them religiously.
They think that as long as they don't cross the threshold or violate the taboos, they can avoid the claws of ghosts and monsters.
But they will never understand until they die——
The most deadly and cruel thing is never the evil in the dark, but the "rules" themselves that they regard as norms and dare not disobey.
