Fate/kaleid liner Prisma☆Illya: Licht - Namae no Nai Shoujo

A dying world can no longer sustain life, and the Ainsworth family seeks to use the Holy Grail to save it. The condition for this salvation is the sacrifice of the magical girl Miyu. Her brother, Shirou, refuses to allow this and resists the family's efforts. With Shirou's resistance, the responsibility falls to Illya to find an alternative solution that can save both Miyu and the world from destruction. Faced with the choice of allowing an innocent girl to die for the greater good, Illya must decide what course of action to take.