Have you ever thought that one day you will be pulled into a terrifying space from which you cannot escape?
Here, everyone who enters will be assigned to a different "weird copy", and each copy has its own rules. Only by obeying the rules can you survive; if you violate them, you will be hunted by strange people.
However, are the rules really safe?
If there are fewer people alive, the weird restrictions will be reduced and the difficulty will seem to be reduced, but you will find that you have nowhere to escape. If there are multiple people, the difficulty of the dungeon will be doubled. If you are not careful, all members will be wiped out!
In this desperate survival game, you must make a choice - survive alone, or risk cooperation?
When something strange comes, can you survive to the end?
Intention: Only by mastering the rules is it possible