D.Gray-man is a manga series written by Katsura Hoshino, about a 15-year-old Akuma hunter named Allen Walker with an odd-looking left arm which can transform into a really big claw. Allen fights against The Millennium Earl and his Akuma: living weapons created by trapping a human soul inside a mechanical body, and having it wear the skin of the human that created it in the first place. The Millennium Earl wants to destroy humanity using the Akuma. The Black Order, which Allen joins early in the series, seeks to stop him. As the story continues, we meet the Clan of Noah, the direct descendants of Noah (he of the ark), who are allied with the Earl.
Tends to go on hiatus a lot due to Hoshino's bad health, so updates are a bit unpredictable. The most recent hiatus ended on August 17th, wherein she released a 50 page chapter. The series has now switched to a monthly schedule.
Discuss here D.Gray-man and everything relate with it :)