Many years ago... The world was destroyed by a zombie virus. There was an occasional human survivor here and there... But the majority of the survivors were zombies. These zombies evolved into monsters called Zomgans... which are half-human, half-zombie hybrids. The emergence of Zomgans... led to the destruction of civilization as we knew it. I managed to survive as a human. But ever since that day... I haven't been able to die.