apocalyptic super system

The end of the world is coming,

terror covers the whole world,

and the earth becomes a hunting ground for zombies and mutants.

Zhao Tianlei accidentally obtained a mysterious super system.

Although he is not a saint,

but seeing the tragic situation in the world and the death of his classmates,

how can he stand by and look at how Zhao Tianlei,

who has a super upgrade and exchange system,

leads humans Fight against corpses, restore human civilization?