Once Yuya has a coat from the wardrobe tent, he spends most of the first day running around in the cold, exploring the moon's winter paradise enough that his ears and nose are turning pink. He definitely saw Gongenzaka during his earlier meditating, but that's kind of a rude to be to interrupt. Now, however, with the cover of the darkness...

He's crouched under the shadow of a tree as Gon begins to pass, crumpling snow into a tight ball between his hands. He waits silently with a mischievous grin, and once Gongenzaka is just passed him he springs out.

"Hey, Gongenzaka!" He throws the snowball right at his shoulder.