Global Catastrophe: Start with an Invincible Sky City

The fog is just the beginning of the catastrophe on this earth, and a wave of global catastrophes are coming one after another! Zombie siege, global tsunami, doomsday jungle, global freeze, future water world... Li Hao was reborn. Not only did he know what was about to happen, he also awakened the Invincible Sky City system, but he just wanted to be a young man who lay down. He is invincible within the territory of Sky City. Every superpower who goes out of Sky City beats the alien creatures to the ground. If they can't defeat them, they come back and ask Li Hao to come out of the city for revenge. Li Hao, who was lying on his back, waved his hand: I won't leave the city, so why don't you ask them to come over.