you are a killer named, Devil Kira, and there is someone that can kill someone named Kira... (Kira = Killer)... And there is a thing called "Death Note" and when you write someone's name in it they die, but you need their real name and their face in your mind... You don't have one of these "Death Note", but Kira does... And Kira is Light Yagami... But only you know who's Kira real name... He says that he kills all the evil people in the world and he stopped war and crime by 80%, you just kill people you see best fit to die... No one knows your name, face, or gender, because you wear a mask with a voice changer... But... You are " working" with, L and Light to "catch" Kira, and Devil Kira.. No one knows you and Light are the ones killing everyone...