Investigating rumors of a child god, Kiritsugu and Shirou arrive just in time to witness the birth of a black vortex which destroys most of the town. Inspecting the origin point Shirou finds a young girl whom he saves from the imminent collapse of her house. The girl is Miyu Sakatsuki, the child of god they were searching for, and her existence just may bring about the world’s salvation.
A drama and action-focused prequel to Prisma☆Illya, chronologically placed immediately after Prisma☆Illya 3rei!!, which can be watched as a stand-alone alternative version of Fate/Stay Night.
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