D. Gray Man (For Fans of Blue Exorcist)
D. Gray Man is the kind of underrated anime that deserves to be far more popular than it is. Taking place in a fictionalized 19th century Europe, D. Gray Man is about a group of high-tech exorcists that do battle with the immortal Millennium Earl and his army of demonic Akuma. Because of the manga’s erratic schedule in its later years, D. Gray Man was subject to a long hiatus that killed a lot of its narrative momentum, keeping it from becoming the iconic franchise it could have been.
The supernatural story is a thoroughly enjoyable ride though, especially for people who like gothic and Lovecraftian themes, or supernatural battle manga in general. D. Gray Man feels different from other shonen series because of its unapologetically dark tone and mature themes.