Prologue

"Hey, did you hear? The City of Athm's populations decreased?!"

"What no way….."

January 26 20XX, the city of Athm is on the lookout because of their populations' sudden decrease, and the one who is responsible for its decrial, is just one man who is an anonymous serial killer; later named as ZERO

I will wear this mask without ever taking it off, the blood on my hands will never fade, angry souls kept haunting me…..even so…..I'm doing this for them...I saved them from suffering in this cruel world, even the Gods may forgive me but I could not.

In order to cleanse the world from corruption, one must shoulder these responsibilities and become the villain.