Apocalypse Rebirth: My Upgradable Fortress RV

When solar flares ignite the apocalypse, civilization crumbles under extreme heat, freezing cold, and a deadly virus. Li Fan gets a second chance—reborn with his future memories and a mysterious high-tech sphere from an advanced alien civilization. Armed with knowledge of what's to come, he's done playing hero. This time, he'll build an unstoppable fortress RV, survive on his own terms, and carve out his destiny in a world where only the ruthless thrive. No mercy. No saints. Just survival.