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 at home, watching the news. Reports were spreading of this new thief, called "Unsightly Presence" by the authorities. They surely chose a terrible name for it though...

While you were pondering about any better names for a thief, a loud crash can be heard. It came from your bedroom.