"Hmm? Are you having trouble, Yuuya?" Gongenzaka seems blissfully unaware that he's having any issue at all. Possibly because this was his dream in the first place, but he as well has nothing but messy scrawls on his bamboo.

He is of course trying not to look at Yuuya's either, since reading other wishes is extremely rude. Momentarily, the worry persists, before he frowns a little. "...Do not tell me... ...you ran out of room...?"

It's a wild guess but hey he can see it happening!