Allen Walker, an exorcist fights Akuma to save the world. Sequel of the 2006 D.Gray-Man series.

In a world where the dead can be brought back to life as living weapons and are controlled By a man called Millennium Earl the only recourse the World has to combat these creatures is specially trained group called Exorcist's who use their own special kind of weapons and unique abilities that comes from a energy source called Innocents, not everyone has this power within themselves, so the group of Exorcist travel the world fighting and trying to put a end to these monsters once and for all.

Despite the recent Akuma attack, the members of the Black Order are in high spirits as they set about moving to a new base. Immediately upon his arrival, however, Allen Walker is suddenly called by the Central Agency and has his arm forcefully sealed by the Order. He is then led to a surprising meeting with his master, General Cross Marian, who reveals staggering secrets surrounding the enigmatic 14th Noah. A phantom thief incident, the arrival of a mysterious group of Exorcists, the death of an important comrade, and an all-out battle against the Noah Family--just what does this mean for Allen, Yuu Kanda, and the rest of the Order? This is but the beginning of a series of strange, seemingly unconnected events that lead to something far greater.