The psychic abilities don't register as magic to Strange's fast and basic cantrip, so congrats Yuya, Strange thinks you're entirely human. Which only makes this all the more confusing. Why would a human loiter around the Sanctuary in the first place?

Yuya's question causes Strange to give the kid a look of confusion mixed with annoyance. Because yeah, that is entirely too nosy and he doesn't have to tell this weird kid why he's here in the first place.

"A business meeting--something that obviously doesn't concern you in the first place." There's a pause, before Strange's nosiness gets the better of him and he asks, "Why are you here, anyway?"