Team rocket? Yuuri blinked at that piece of information before his mind was filled with people who flew around the world in a big rocket... He wasn't going to lie... He'd like to see that even if they were the bad guys.

His mind paused in its wondering though when he heard the word alien. "Aliens?!" he gasped. Now that was something he hadn't encountered before! "Little green people type aliens and government conspiracies?? That type of aliens?"

He was imagining a first contact situation and Yuuri's eyes went wide at the thought. Aaah wouldn't they have to put their best foot forward?! Although if they'd been here already then there wouldn't be a need for a first contact situation. Aaah all these new things!

Yuuri peered at Hermione with curious eyes as she talked about being here before and not remembering it. "Huh? So it's not like Shin Makoku." He muttered to himself before his attention was brought to the pokeball in his possession.

Peering down at it, Yuuri grinned sheepishly as he admitted, "I don't really know how to open it?" Maybe he should look for a manual for this world. Maybe that PokeGear have one??