Years after the Fourth Holy Grail War, Waver Velvet becomes the head of the Modern Magecraft Theories department at the Clock Tower, succeeding the title of Lord El-Melloi II. Waver and his apprentice Gray set out to find the truth behind a mysterious shadow that stalks them, while trouble brews among the mages of the Association. [Written by MAL Rewrite]

This episode takes place before the actual planning of the School Fair and shows how the girls spend their summer holidays.

Ura Ex, extra short anime included in Blu-ray and the DVD releases of Ao no Exorcist.

The special will be the first in the "Episode of" series to cover the Skypeia arc, and will feature a character who did not appear in the original Skypeia arc from the anime.