Fate/stay night [Unlimited Blade Works] - Prologue

When a mis‑summoned Archer replaces Saber, Rin’s quest for the Grail turns into a deadly lesson in trust.

In the neon‑lit streets of Fuyuki, a centuries‑old contest known as the Holy Grail War erupts once more. Seven mages, each a master of occult arts, summon heroic spirits—legendary warriors from myth and history—to fight for a single wish‑granting chalice. This fifth iteration centers on the determined high‑schooler Rin Tōsaka, who inherits her family's role as a competent but untested magus. Intent on securing the formidable Saber, the archetypal knight‑in‑shining‑armor, Rin meticulously prepares her ritual, confident that a noble blade will guarantee victory. However, the arcane contract goes awry, and instead of the radiant Saber, a stoic archer materializes—Archer, a cynical, silver‑haired marksman whose motives are as enigmatic as his bow. The mis‑summon forces Rin to confront the brutal reality of the Grail War: power is fickle, and allies can be as dangerous as foes. As the city’s underbelly swirls with other masters and their own summoned heroes, Rin must quickly adapt, learning to wield Archer’s cold precision while navigating a battlefield where every move could cost her life—or her heart.

This prologue introduces the Holy Grail War through Rin Tohsaka's perspective as she accidentally summons the Archer-class servant. Expect polished urban fantasy action with magical duels, strategic combat, and a serious tone that sets up the larger conflict without graphic excess.