Imaginatory friends

I only read about them so far and now we experience it - Gaia has imaginatory friends: Anna, Kristof, Olaf and Sven (and their names are not accidental). They are always with her, they play, eat and probably sleep together. We haven't been sure how to tackle this issue but we felt it cannot be wrong and it boosts her imagination, right? As long as she has real friends too (and she does), everything seems to be under control.

Anna is jumping.

PS. Oh, I would have forgotten about lupo (wolf) - he appears here and there and Gaia needs to hide/escape.