Everyday is a normal day in the small town where Kasuga Arata lives; however, everything changed on the day of the Black Sun, and following it, a magician appears before him. The Black Sun caused the Breakdown Phenomenon which destroyed the town where he lives. Because of this, his normal life was artificially reconstructed by a Grimoire that his childhood friend had left. Just what is the purpose of the magician coming to the town? What will he do with the Grimoire's keepsake?

Mistarcia is a magical world where humans, gods, and demons mingle together. In the past, the black-and-silver winged Bahamut has threatened to destroy the land, but humans, gods, and demons overcame their differences to fight together and seal its power.

Fate/stay night: Unlimited Blade Works is new Fate/stay night TV adaption following the Unlimited Blade Works route. This TV animation is a remake of Fate/stay night: Unlimited Blade Works movie. The Fate/stay night: Heaven's Feel movie is alternate retelling of Fate/stay night adapting the third route of Fate/stay night.