The story tells about Shu, the main character (who at first, as beginner, is only Pikachu's master) and his Pokémon's travel through the country to improve their few fighting abilities; but, differently from all the other masters, they can understand each other thanks to a special earphone.

We follow Shu and his companion through a lot of very funny adventures which will bring the boy to catch new Pokémon and to become a very experienced Pokémon master.