Fate/stay night: Unlimited Blade Works Filler List

Rin Tohsaka is a skilled magus and Master of Archer whose pragmatic approach to the Holy Grail War is repeatedly complicated by her growing bond with Shirou.

Shirou Emiya is a young magus who, in the Unlimited Blade Works route, forms an uneasy alliance with Rin Tohsaka after his own Servant Saber is drawn into an early confrontation.

Archer is Rin's Servant in the Unlimited Blade Works route, a cynical bow-wielding warrior whose mysterious, deeply personal connection to Shirou drives the story's central conflict.

Saber is Shirou's Servant, a legendary swordswoman bound by honor whose presence anchors Shirou even as the Unlimited Blade Works route shifts its focus toward Rin and Archer.