The Numerica Region is a land where multiple wars caused the constant division of its people and the migration of Pokémon looking for a peaceful home. Adding to that the harsh terrain of its Millennium Mountains, which cover a vast area of the region, equals tourists not considering it a desireable destination. But just like the Pokémon, some have found that small, peaceful paradise that is the Centennial Valley, where the amount of Pokémon that roam free would put some regions to shame.