Wolfram Sakimoto, an infamous criminal, was about to be executed in a secret military facility only to survive by a sudden earthquake that struck the whole world and turned it upside down. With the appearance of strange and absurdly powerful monsters, humans started their final struggle to survive this tragic calamity.
Wolfram, however, found joy and not despair in this drastic change. A lunatic on the loose, without any morals to uphold, only his thirst to battle the strongest.
PS: This story has a relation with RE;Hell Gate and Once Human, Now a Parasite.
The Protagonist is eccentric, to say the least, so don't expect any heroic dude. He can be a madman and a hypocrite, if that is not to your taste, then this isn't a story for you.