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 investigating an abandoned lab on an isolated island. Most of the files preserved on the computers were either corrupted or had been deleted. Nontheless, you were downloading what was left of the research data onto your hard drive.

...And then you heard it. A slight noise of footsteps. Enough to make you understand you weren't alone.