Irisviel and Kiritsugu have requested that Illya does not receive Memorial Essences; or at least; certain ones.
- Specifically, memories regarding her Fate/stay night self. Kuro is aware of this. She's not happy about it, but she understands.
- Jossed. Sitonai, who's the version of Illya who does have those memories, has been confirmed to be different enough from Prisma!Illya to avert the fate of being reduced to a Memory Essence. She hasn't shown up yet, but it's confirmed they will not merge into a single Servant.
