Weird Story About Rules: Infinite Copies Are All Traps

Are There Any High-Quality Rules and Ghost Stories Books? They Are in Short Supply Recently.

It doesn't need to be someone who has participated in a game or traveled through time. It needs to be that the protagonist knows that there are strange rules in the world because of participating in something (for example: the protagonist becomes a teacher without knowing it but the school has strange rules). Please, all book friends! ! ! !