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.

Ah, the beach. Place where you come to relax, swim, sunbathe... Wait, where's the sun? Why is nobody here? And what's up with the cover of snow everywhere? It's May, for Dialga's sake!

But, as you were wondering what happened here, a glacial feeling ran up your spine. And no, it wasn't caused by the progressively colder air. Someone else was here with you.

"Hi hi hi! Sorry mister, but the beach's closed!"