~~The following program contains adult themes and scenes of violence and sexual assault that may not be suitable for some viewers and is inappropriate for children. The content is intended for mature audiences only.~~

Centuries ago, vicious and bloodthirsty demons who were immune to all manner of weaponry plagued mankind. Humanity's cries for help brought forth the Idaten; battle deities who would use their incredible speed to hunt the demons down, and then seal them away. In the following 800 years of peace, the Idaten have not had any enemies to fight. But that is about to change...
It'll be faster to go see 
than stand around and guess.
سيكون من الأسرع الذهاب والتحقّق
بدلاً من البقاء هنا والتخمين
Aber einfach nachschauen geht schneller,
als hier rumzuraten.
Será más rápido ir a echar un vistazo.
Será más rápido ir a echar un vistazo.
On le saura plus vite
en allant sur place.
Direi che faccio prima ad andare a vedere
piuttosto che stare qui a pensarci.
Seria mais fácil ir lá ver
do que ficar de conversa.
Проще пойти посмотреть,
чем ломать голову.