

Ritsuka and Mash soon discover that Demonic Beasts roam the land, attacking people and towns. Now, they depart for their most dangerous destination yet: a civilization in the Age of Gods, B.C. 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.

Thus commenced the operation to repair the Singularities in history caused by Holy Grails dispersed across time and space-Operation Grand Order. Chaldea, a secret mages organization with the mission to preserve humanity's future, foresaw mankind's extinction in 2015. 2016, the foundations of humanity have been incinerated by the Mage King Solomon.
