You were invited to visit a village that was mainly populated by Eevees and Eeveelutions, and while you were exploring a building with a large sign saying "LAB", you came across a Eevee that seems to made completely out of glass. It also looks like he is working on his projects and doesn't seem to notice you yet

But when he did, he was slightly surprised that someone, especially a guest, was allowed inside his laboratory... He'll definitely be having a word with the guards once he was done with this

"Oh, you must be that guest that was invited into our village, huh? Well, I wish you a enjoyable trip around here but please get out of my laboratory. It's off limits to guests and I'll only let the people I know inside" He said as he waited for you to leave, but a part of him knew that you were too busy exploring to actually listen to him