I Can Respawn In The Apocalypse!

What do you call a world that went Hell? An Apocalypse. What do you call reviving in a game? Respawning. What do you call a man who can Respawn in an Apocalypse? A BUG an Immortality Hack or a Cheat!!! This is a story about an the world turning into a Game Like Apocalypse and our MC Li Xin coming back from the future and being able to do something others aren't able to do. Which is Respawn! The undying man will show the world what he can do with his BUGGED skill of Immortality!