Fate/stay night: Unlimited Blade Works Prologue

Rin Tohsaka has spent years preparing to enter the Fifth Holy Grail War, a secret conflict in which seven magi summon Heroic Spirits and fight for a wish-granting relic. Determined to honor her family's legacy, Rin aims to summon the Saber-class Servant, only for her ritual to bring forth the sharp-tongued Archer instead.

The mismatched pair quickly enter the hidden war unfolding across Fuyuki City. When Rin witnesses Archer clash with Lancer at school, an ordinary student is caught where no witness should be. Her decision to save his life quietly links her path to Shirou Emiya and sets the stage for a far larger conflict than either of them realizes.