Migration in the End of the World: I Can Awaken Infinitely

[Weird + System + Power Awakening + Dungeon Survival + Migration Survival + Use Any Means + Upgrade] A red rain strikes, and the end of the world arrives. Soil, food, and water resources are polluted. Cities become forbidden areas for humans. Cities large and small become strange dungeons. The dungeon levels range from SSS to E. The level of dungeons in super first-tier cities exceeds SSS. There are also countless weird existences outside the city. Human beings cannot survive in the city and begin to migrate.