Innocent Devil

Innocent Devil (イノセントデビル) is a manga written by Nakamura Moto and illustrated by Souichirou. It has been serialized in Gangan Joker from 2016.

Plot
Jack the Ripper; Ed Gein; Andrei Chikatilo; John Wayne Gacy; Jeffrey Dahmer - separate from these serial killers who shocked the world, there exist offenders known as "Innocent Devils", who murder without malice. A criminal psychologist and her beautiful assistant probe the depths their minds.