A.D. 2016, the foundations of humanity have been incinerated by the Mage King Solomon. Chaldea, a secret mages organization with the mission to preserve humanity's future, foresaw mankind's extinction in 2015. Thus commenced the operation to repair the Singularities in history caused by Holy Grails dispersed across time and space—Operation Grand Order. Using the Rayshift time travel technology, Chaldea's last master Ritsuka Fujimaru and his demi-servant Mash Kyrielight have traveled to and resolved six Singularities. Now, they depart for their most dangerous destination yet: a civilization in the Age of Gods, B.C. 2655 Mesopotamia. Ritsuka and Mash soon discover that Demonic Beasts roam the land, attacking people and towns. Amidst chaos and terror lies humanity's last defense—Uruk, a for