The story takes place in a time when the world is in the pits of despair after being ravaged by a poison called "shinobi" that came to earth via an asteroid. The people run away to the place called "Kairiku," a place that used to be the bottom of the ocean. Here, the people try and protect themselves against the effects of the poison. In such a world, there was a single light of hope. The "Holy Weapon Giga Road" and the legendary warrior "Yagyuu" are needed in order to counter the effects of the poison. In order to save the world, Ame, a princess of a fallen nation, stands up in order to save the world. (Source: ANN)

Fourth season of .

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

As the Shinda Sekai Sensen (SSS) continue their vindictive rebellion against God, their leader, Yuri Nakamura, comes up with an ingenious plan to escape the afterlife. Her subordinates prepare to carry out "Operation High Tension Syndrome" to deceive Kanade Tachibana, student council president and alleged associate of God, into thinking that they are ready to pass on. With a week's worth of food on the line and with Heaven as the ultimate prize, will the SSS members be able to fool the inscrutable Kanade? [Written by MAL Rewrite]