The story focuses on the background of Mash Kyrielight and Romani Archaman, and the events leading up to the Seventh Singularity, Absolute Demonic Front Babylonia.
 
 
This episode aired on August 3, 2019 at Fate/Grand Order Fes. 2019: Chaldea Park. It was available for download on the Fate/Grand Order mobile app, from August 4, 2019 to August 11, 2019.

The second part in a two-part anime film project adapting the "Sixth Singularity - Divine Realm of the Round Table: Camelot" story from the game.
 
(Source: Anime News Network)

The wandering knight, Bedivere, reaches the end of his journey.
 
The year is A.D. 1273 in Jerusalem.
 
The Holy Land has been transformed into a massive desert, the people have been forced out of their homes, and three major powers wage war with each other in this wasteland. The Knights of the Round Table come together to protect the Holy City and their Lion King. With the whole of his kingdom summoned into a strange land, Ozymandias, the Sun-King, quietly plots against the tyranny of this bizarre realm.
 
The mountain people, protectors of those who were stripped of their land, await their chance at rebellion. In order to fulfill his mission, Bedivere heads for the Holy City where the Lion King rules. There he meets humanity’s final Master, Ritsuka Fujimaru, who has come to Jerusalem, accompanied by his Demi-Servant, Mash Kyrielight, in their quest to restore human history.
 
Bedivere joins with Fujimaru and his companions to undertake this quest.
 
(Source: Official Website)

A seventh Singularity has been discovered in ancient Mesopotamia in the year 2655 B.C. 
 
The land of Uruk, governed by the wise King Gilgamesh after he returned from his quest for immortality, was grand and prosperous until three goddesses and countless Demonic Beasts appeared. These enemies have brought Uruk to the brink of destruction. With a Rayshift—a method of traveling across both time and space—Fujimaru and Mash journey to the land of Uruk, where they encounter the fortress city of Uruk and the Absolute Demonic Front, where a terrible battle against the fearsome onslaught of the Demonic Beasts rages. There, the citizens of Uruk, who live their lives to the fullest despite facing an existential threat, continue to fight for their future. Deities and Demonic Beasts attack with terrifying force, and mankind pushes back with all its might... This is the era where humans and gods are destined to part ways. 
 
Fujimaru and Mash, the pair who have fought through all six previous Singularities, embark on their final battle. 
 
(Source: Aniplex of America) 
 
Note: Based on the Babylonia Singularity of Fate/Grand Order, the Japanese smartphone role-playing game created by Delight Works based on the Fate series by Type-Moon.

DELiGHTWORKS