"Huh?" ...Strange question. Oh, but he recalls, there are regions where formal trainers were essentially banned, or where Pokéballs weren't the norm- usually places that considered themselves wildlife sanctuaries, or where the tradition of partner Pokémon had never included their capture. They were fewer, but not unheard of...

Blue leans a hand to his belt, where there are six small red and white capsules- he unclips one, which seems to be held by a magnet or some invisible force, and holds it up. A ball, bisected into red and white, with a button at the center.

"You've never seen one? Trainers use them in most major regions." Weird flex but okay, Blue. "My Pokémon are inside, but right now they can't seem to get out- the ball isn't responding, even when I try to manually release." He demonstrates by pressing the button a few times- nothing happens.

He clips the ball back to his belt, and frowns at mention of the mansion. "I saw it, but I'm more interested in those cool Pokémon that had made it their home...! They seem friendly though, so if you don't mind their rough-housing, they probably won't be bad neighbors." He grins.

"...But your guess is good as mine about that fire. The Pokémon's fire didn't burn, either. I don't really understand what kind of logic this place runs under."