"Oh, I'm sure there is," He says. "There were skeletons older than I was and there were some around for them too, I think. The trouble is, we don't last long out there. Every once and a while we'd lose a whole chunk of the group to something or other, even besides the gradual stuff. Sometimes knowledge just ends up lost."

He shrugs. A horrifying fact that, at the moment, doesn't register for being as terrible as it is. But as Yuya follows up, he immediately looks embarrassed.

"Ah...haha... yeah. Yeah, it was..." Oops.