Satoshi and Pikachu set out on a new journey in the land of Houen, following Satoshi's participation in the Johto League. Along the way, 10-year-old Haruka joins them, despite her initial dislike of Pokémon, to see the world. Satoshi also reunites with his old friend Takeshi and Haruka's younger brother Masato, and together they travel through Houen, battling Gym Leaders and participating in various events. This journey is a path to the Houen League.