Apocalyptic Super System

Story:

The world is coming to an end, terror is sweeping the world, and the land becomes a hunting ground for zombies and mutants. Zhao Tianlei accidentally got a mysterious super system. Although he is not a saint, when he sees the pathetic state of the world and as the disciples die one after the other, and then  Zhao Tianlei, who received the super system of upgrade and exchange, leads people to fight against zombies to restore human civilization.