I'm a college student who watched with my own eyes as the world descended into hell. A Dark Sphere arrived on Earth, turning half the planet into zombies. They thrive on killing us - people - as every kill fuels their development and makes them stronger.
Besides zombies, there are also mutants: mutated animals. Plus Monsters: bizarre creatures in possession of striking strength and abilities.
Levels, skills, new yet unheard-of objects... our world has changed.
We have only one hope of surviving: we need to fight. By killing zombies, mutants, and Monsters, we're becoming stronger.
And I, Andrew First, will be the strongest of them all.