This was in book 3 when Lindel told Chise about Mages. He mentioned that some of them never wanted to be with humans and changed their Body into something else.
One of them has a simelar but very minimalistic version of the Hands Outfit.
How funny would it be if Lindel knew her but had just forgotten about her because they didn't see each other to often.
Besides im wondering if we see the other two who stand behind Lindel maybe as some kind of arc mage who are as old as him and have either the same opinion about Humans and fae or the opposite.
After all he seems to be a kind of antagonist at some point of the arc. And for some reason i think Elias wouldn't be able to treat him as such. They spent so much time together and he always behave like a Son around him. So it would be an opportunity to introduce some other old mages to stop Lindel from what ever he will try to do.











