It's the year 2071. Humanity has been pushed to the verge of extinction as a result of the appearance of man-eating creatures known as "Aragami," who are immune to conventional weaponry. They destroyed the area, devouring nearly everything in their path and left little behind. To resist them, Fenrir was founded as a last-ditch effort to rescue mankind by using "God Eaters"—special humans injected with Oracle cells, allowing them to wield the God Arc, the only known weapon capable of killing an Aragami. Lenka Utsugi, a New-Type whose God Arc takes the shape of both a blade and a gun, is one such God Eater. Now, as one of Fenrir's most powerful weapons, Lenka must conquer his God Arc if he is to fulfill his destiny.