D. Gray-Man / Hoshino, Katsura

In nineteenth-century England, fifteen-year-old Allen Walker searches for the mysterious substance used to obliterate the "akuma" demons, and, after the battle at Krory Castle, finds an unexpected ally to help him in his search.

As Allen Walker struggles with his identity, he meets the Cardinal and what he discovers about the Cardinal brings him a vision that shocks him to the core.

Exorcist Yu Kanda begins having flashbacks from his childhood and realizes how desperate factions of the Black Order were to overcome threats from the akuma.

Allen Walker, a fifteen-year-old boy who roams Earth in search of Innocence, a mysterious substance used to create weapons that defeat demons known as akuma, is undergoing some odd changes after a battle with a Level 4 akuma, and is underprepared for the appearance of the servants of the Millennium Earl.

Exorcists Allen and Kanda work with the Paris police to prevent the theft of a valuable crown from the Louvre Museum by a phantom thief known only as G. and, in the process, make a discovery that is significant for the future of the Black Order.

Allen Walker tries to hold off a level four akuma, while Lenalee works to reclaim her Innocence so she can fight it.

Allen is given a choice by Road, who tells him he must destroy his friend Lavi to rescue Lenalee and Chaoji, and when Allen refuses, Lavi may be the only one who knows enough to get the upper hand on Road.

Komui must stop an experimental virus of his own creation from continuing to turn members of the Black Order into zombies, but a vengeful spirit keeps hindering his efforts.

Lulu Bell leads an army of Akuma against the exorcists in order to claim the powerful Egg, which will enable the Millennium Earl to put his evil plan into motion, and it is up to Allen and Bookman to thwart the Noah's plans.

Cross Marian is preparing to finish off Tyki Mikk when Millennium Earl interrupts with a plan to build a new Ark by using data downloads from the old one, and Allen is instructed by a strange apparition to play the piano even though he has never had lessons.