: After the Fourth Holy Grail War, her father, Kiritsugu, was barred from seeing her. The Einzberns manipulated Illya into believing he had abandoned her for Shirou, fueling a deep-seated resentment that initially drives her actions in the Fifth War.
: Initially an antagonist, she eventually joins Shirou's household and lives peacefully after Berserker is defeated. Illyasviel von Einzbern
: She plays a smaller role and meets a tragic end at the hands of Gilgamesh , who removes her heart to use as a core for the Grail. : After the Fourth Holy Grail War, her
: She can manifest the Dress of Heaven, an Einzbern artifact that allows for a limited use of the Third Magic, enabling the materialization of the soul. Roles Across Different Routes : She plays a smaller role and meets
: As an Einzbern homunculus, Illya was born and bred to act as the Lesser Grail, meant to collect the souls of defeated Servants during the war.
: She can transform strands of her own hair into autonomous familiars known as Storch Ritter, which can fire magical blasts and defend her automatically.
: She serves as a vital ally and a major heroine. In the True Ending, she sacrifices herself to save Shirou and close the Grail, finally fulfilling her role as his "older sister." Alternate Universe: Prisma Illya