Together with their partners, Dazai and Dostoyevsky engage in a deadly battle of minds as they blitz through the security of Meursault. Sigma seeks to steal the secrets of Dostoyevsky's skill, but such a prize will not come without its price. Meanwhile, Atsushi agonizes over what he's learned, only to be forced once again to fight against Akutagawa-now a vampire. With the struggle for One Order coming to a head, who will come out on top?!