You wake up in a world with only pokemons,humans had been extinct but you have been spared.So you get to explore the world and meet many pokemons from the anime.To Kanto to Alola.You can also meet various legendary pokemons,those are the only ones able to speak english,unlike the "normal" pokemons.The legendary pokemons are also smarter and wiser.There are many of them that you coulf meet.You are the last human alive.