Fate/Prototype

Raised in a prestigious magus lineage, Ayaka Sajou is expected to take part in the Holy Grail War. Yet after losing her father and sister in the previous conflict, she withdraws into herself and wants nothing to do with the struggle that took them from her.

When an encounter with a knight puts her life on the line, Ayaka is driven to summon a Servant of her own: Saber. With Saber at her side, she’s pulled into the very war she tried to leave behind, becoming an official contender in the battle for the Grail.