Embarrassed maid is cute. She should've taken him up on that offer. He wanted to introduce his partner, after all.
I'd say a bunch of details on that castle are out of proportion or wrong, but that'd be nitpicky. A bunch of details on that castle are out of proportion or wrong.
Such a magic science nerd.
Maids are gone, time to release princess mode.
What's with people and not being able to wash their hair...
See? Should've taken him up on the offer.
So then water magic is drawn from the chest, and air magic from the head?
I hope that familiar thing is more about a mutual bond than slave magic. I've seen either and many in between in mangas.