Aqua obviously doesn't know Vena (it should probably stay that way. He should stick with the image of Vena he has in his head right now and leave it at that. But he's important to Su-jin and that makes meeting him some day feel important) but he does know Su-jin. Maybe he doesn't know Su-jin well, but he knows him well enough. Well enough to understand how good of a person he is. Trust him. Animals have a sense for that sort of thing. So if his partner helped even just a little to make Su-jin into the person Aqua got to meet, there has to be some good in him. So Aqua bobs his head up and down in a quick, confident nod, then gives the other a bright smile.

"You are. You're proof."

Tipping his to one side as he thinks about Su-jin's question, he gives the people he can see a quick glance then once again nods his head. "Mhm. I've noticed that. There's not that many humans here." Though he's not sure what everyone else is. So many smells, so many creatures he's unfamiliar with. There are so many intermingling scents that it's hard to pick any one out. Except for Su-jin's. He's growing rather accustomed to Su-jin's scent and is getting closer to being able to pick him out of a crowd. "Wait, why are there only a few humans here?"