Akuma no seifuku no fukushū? it's a story about Akuma shi Shinigami who's his sister comes back into his life takes him into a different zone of Japan while Akuma has unlocked a new power that was unleashed after an unfortunate bloody event. This Dark power has now given him the strength to become something more than an average person. Is this power a gift or is it a curse? Whatever it is, Akuma intends to use it in order to bring about a better world.