Fate/kaleid liner Prisma☆Illya: Vow in the Snow

"「First of all, let me talk about Miyu and the story so far at first...」 The world is dying. To stop it, you could only sacrifice Miyu which is also the Holy Grail. Save the world, or Miyu? Faced with the question raised by Ainsworth who is under the name of saving the world, Illya gave the answer that she would save both. After the battle came a short break. Illya and her teammates were invited by Shiiro to his home. Five years after that..."