There are multiple universes in the series. However, it is still technically canon, because it is the Ilya route.
When will I finally get my own route? <Ilya>
Nasu: There already is one! Say hello to 「Prisma☆Ilya」!
Takeuchi: You really gonna let it go with just that?
Nasu: Of course. Someone was bound to finish what I can't do myself. Humans are amazing beings!