Blue Exorcist

Blue Exorcist (Japanese: 青の祓魔師（エクソシスト）, Hepburn: Ao no Ekusoshisuto?) is a manga written and illustrated by Kazue Katō. The manga has been serialized in Jump Square magazine by Shueisha since April 2009, with individual chapters collected into thirteen tankōbon volumes as of July 4, 2014.[1] The story revolves around Rin Okumura, a teenager who discovers he is the son of Satan born from a human woman and is the inheritor of Satan's powers. When Satan kills Rin's guardian, Rin decides to become an exorcist in order to defeat his father.

The series was adapted into an anime television series by A-1 Pictures during 2011 and adapted into an anime film (Ao no Exorcist Gekijouban) in December 2012.[2] Viz Media has licensed the manga for North American production, with the first volume released in April 5, 2011. Aniplex of America also released the anime's DVDs in English regions. (Wikipedia)

This is an anime I haven't watched all of, and the only one that I've actually read more than I've watched (which is because the only other manga I've read that was also an anime I watched was the first two Madoka Magica manga) but yeah... I'm on like the eigth book so no spoilers!