"Possibly, but I suspect it was some kind of Water Release, given the size, and learning more about different elemental specialties is an interest of mine. I've never seen bubbles that size before before."

That particular answer was not encouraging about satisfying her curiosity, however, so Naoto resigned herself to letting it drop. Whatever his reasons for not answering honestly, Naoto didn't wish to find out the hard way. She was confident in her skills, but barely a chuunin, and this shinobi was much older and had a technique at his disposal that she knew nothing about.

"But if you haven't seen it, I suppose I've lost it." However, perhaps signaling her willingness to not pursue answers would incline him to open up. Naoto had seen stranger things.