Survival Game: It's a Fair Game, Why Is Your Sister the GM?

A magical APP that contains countless copies and endless fears. The selected players need to enter various dungeons to complete tasks. Either survive or die, or reap rewards, win honors, and become the overlord in the real world. Come, the thing called fear trembles under my feet, and everything called glory takes the initiative to get close to me. And I will be the maker of the rules of the game. Welcome to the copy world...