Fate/Apocrypha

The Holy Grail is an ancient relic said to grant any wish, and magi known as Masters pursue it by summoning legendary Heroic Spirits—Servants—to fight in the brutal Holy Grail War. Victory belongs only to the final Master–Servant pair left standing. Yet the Third Holy Grail War ended without a winner when the Grail vanished in the aftermath.

Years later, the Yggdmillennia clan claims to possess the Holy Grail and declares its intent to break away from the Mage’s Association. The Association dispatches fifty elite magi to reclaim the artifact, but all except one are slain by an unknown Servant, and the survivor is sent back as a messenger bearing Yggdmillennia’s declaration of war.

With two factions now openly opposed, the conflict becomes a rare variation: each side fields seven Master–Servant pairs, and the first to lose all of its combatants forfeits the Grail. As fourteen Masters summon their Servants and gather for battle, the Great Holy Grail War begins.