Fate/kaleid liner Prisma☆Illya 3rei!!

The third season of Fate/kaleid liner Prisma☆Illya. Illya and the gang have finished their battle against the heroic spirit residing in the eighth class card. They're back in vacation mode again, looking to make the most of what they have left of summer break. But their hopes get crushed in the blink of an eye. An all-too-unrealistic silhouette appears before them when they go...