Apocalyptic Super System is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading chapters on mangagreat.com fastest updating comic site. The Summary is
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?