The story centers around Yoshino, an ordinary high school student with a mysterious friend named Mahiro. Mahiro made a deal with a witch named Hakaze to hunt down the killer of his sister. Now Mahiro is missing and Yoshino finds himself involved in crisis that may doom the entire world.

Source: ANN

Note: The first episode received an early screening at a special event on 29 September 2012 at all Animate stores (excluding Tokushima), all Gamers stores, and Comic Toranoana Akihabara Store B. The regular TV broadcast started on 5 October 2012.

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