Fate/Grand Order: Zettai Majuu Sensen Babylonia

After repairing six Singularities, Chaldea's final major mission sends Ritsuka Fujimaru and Mash to Mesopotamia in 2655 BC, an age when gods still walk close to humanity. They find the city of Uruk resisting an enormous army of demonic beasts under King Gilgamesh, who has built a final defensive front to preserve what remains of civilization.

Behind the invasion stands the Three Goddess Alliance and powers whose goals do not entirely align. Ritsuka and Mash join Uruk's defense beside Servants and heroes of the age, but every victory exposes a greater disaster waiting beyond it. To restore human history, they must defend a city that knows it is surrounded and confront an enemy that seeks not merely to conquer the world but to redefine life itself.