"You mean like the places he tries not to get sand in?" Yuri replied when Kairos joked about prodding the master Luxu's mind about matters not involving magic. If she was going to kid around about the situation, he'd certainly do the same. With that alone though, he was content to continue traveling the world until they reached whatever destination was upon them. It seemed they were en route to the mines mentioned by Kairos in her explanation, but they were fated to be interrupted by the arrival of Darkness beginning to take form. Yuri halted all movement, summoning his Keyblade while addressing the matter of Kairos' new fire-based Keychain and the fact that his cover story hadn't been the best. "You're the one who was talking about the sand before, so I went with what made sense. Besides, you could have made the whole thing easier by admitting that you were cheating on Master Invi with one of his peers!" he said as one final joke before the Heartless appeared properly around them. With his Keyblade raised, Yuri took the initiative in assaulting this group of Heartless. "Zero Gravira!" All around Yuri, excluding Kairos, from the effect, his spell removed the hold gravity held on all things physical. As such, the Heartless beginning to surround them would begin to float and effectively be rendered incapable of approaching them directly by any normal means.