[Kanji might not have been able to put it together from the frost on the ground, but seeing it blooming right before his eyes is enough. First his eyes widen a little, and he does take a minute or two of concentration, but then he grins. He doesn't seem to find the idea unusual at all.]

Oh. Oh. Ice is your element, huh? Wow, that's awesome and--

[A pause, and then he laughs a little at himself before nodding at the hoodie.]

That's real frost on there, ain't it? Well, it still looks nice.