In the new year of 2077, the whole world was simultaneously swallowed up by the "Kaitan Sky Curtain", and human civilization was forced to fall into the "Kaitan Multiverse with Rules". Everyone is bound to the "Chosen One System". Humans between the ages of 10 and 60 must enter the Kaidan dungeon regularly, and will die if they fail. If the national level dungeon fails, the corresponding city will directly turn into a strange realm. If the global ultimate dungeon fails, humanity will be completely extinct. Rules are life and death, only by seeing through them can you survive.
