The main character of this work. I had a traffic accident in 2014, and when I woke up, in 2030, I was in the shape of only my brain. And Akira, who has become known as an unknown weapon "EX-ARM No.00" with supernatural powers and has demonstrated advanced hacking ability, is told that "you are an enemy of all humankind." Cooperate with the Metropolitan Police Department "EX-ARM Countermeasures Division" to regain the memory and body that you lost.