[Now that the two of them have finished the course and secured their prizes, Purple feels there's no reason to continue the charade anymore - so by the time Duval's within their personal bubble, they've already swapped their outfit out for their comfortable, familiar robe, with the outfit neatly folded in a small stack... floating in front of them, of course.
They're also keeping themself off the ground, too. A solid four or five inches, just to really make sure their robe doesn't drag against the earth.

That question gives them a moment's pause, though, as they stare at Duval, unblinking, and think of how to answer it.]

"What" I am is a bit difficult to answer. I can tell you, if you're truly curious about that.
"Who" I am, however, is much simpler for the both of us -
I am Purple Mage. Just "Purple" suffices, if you prefer.