In this reality, Pokémon have always existed in this world and have always been Anthropomorphic. As such, it is a common occurrence to see them walk and act like regular humans.

Now, back to our story.

You were out for a walk in the woods. It was getting dark, so you were heading home. However, while passing through a silent graveyard, you saw an odd-looking girl. She floated silently above ground, not showing signs of life...