Transported to Apocalypse with Novus System

Riley Mayfield found himself in the apocalypse world with zombies and mutated beasts lurking around. But worry not he just nowadays a lucky bastard, because possessed godly System! Alright, freet not my friends! In the name of Oly--- no, I mean in the name of DECEM or whatever it's. I'll bring salvation to this mundane world from those alien-like bastards!