The manga series D.Gray-man, created by Katsura Hoshino, began serialization in Shueisha's Weekly Shōnen Jump magazine.
The first season of the D.Gray-man anime adaptation premiered in Japan, bringing the series to a wider audience.
Due to health issues and the irregular publication schedule, the D.Gray-man manga moved from Weekly Shōnen Jump to the monthly Jump Square magazine.
The second season of the D.Gray-man anime premiered, continuing the story from the first season.
Following several hiatuses due to the author's health, the manga resumed serialization in Jump Square.
A new anime adaptation titled D.Gray-man Hallow premiered, adapting parts of the manga series.
The Millennium Earl is created and begins his quest to destroy humanity using Akuma, mechanical weapons possessed by spirits.
The Millennium Earl starts producing Akuma to wage war against humanity, causing widespread destruction and fear.
The Black Order is founded by the Vatican to combat the Millennium Earl and his Akuma with Exorcists wielding Innocence.
Allen Walker is recruited by the Black Order and begins his training to become an Exorcist, wielding Anti-Akuma weapon Innocence in his left arm.
The Noah Family, immortal beings linked to the Earl and his cause, begin direct interference in the war between the Black Order and Akuma.
Key battles occur at Rachel, where the Exorcists face off against the Noah Family and the Millennium Earl's forces.
Exorcists and other characters uncover deeper truths about the two types of Innocence and its mysterious origins.
Allen discovers his cursed eye and his partial connection to the Noah Family, complicating his allegiance and mission.
The Black Order engages in a critical battle aboard the Ark, the military ship and base, against the Noah and the Earl's forces.
Allen faces the Millennium Earl in a decisive confrontation to end the Akuma threat and protect humanity.
