They say that once every 100 years, the world will face a global pandemic, causing millions of deaths. It was like a divine punishment for all of our sins. But could it be that this is the world's last divine punishment? A mutated fungal disease has given rise to the deadliest plague known to mankind, eradicating humanity and turning people into cannibalistic zombies. It was fallacious to believe that these creatures only exist in our imaginations, in movies, and in books. And the funny thing is that this undead dead person still has their cravings, or rather, their death cravings. As the world turned upside down, facing human damnation, the Groot Institute, a notorious underground organization, decided to intervene and give humanity a little assistance by finally releasing the institute's ultimate weapon, the Devil's perfect little assistants.