"I-I don't know!" Gon's panic only makes Yuya panic more, and he jerks his and away and quickly reels back to sit up on the bed and away from Gongenzaka. "We found you like that, after they took you and locked you up in some prison! There were copies of you, too, and they tried to stop us..."

He hasn't seen anyone else rescued yet, so maybe it's because of that? Was this going to be permanent? Yuya doesn't have any of the answers to give to Gon, and his expression looks just as lost. "It was just... gone, when we got you out."