In 2026, a mysterious APP called "Rule Game" suddenly appeared on the mobile phones of hundreds of millions of people around the world. The selected people will be forced into various "rules dungeons" and must strictly abide by the rules in the dungeon to survive. People who violate the rules will disappear in various strange ways...
No one knows who developed this app or what its purpose is. The only thing that is certain is that those who clear all the copies can realize a wish.
