Pocket Monsters, or Pokémon for short. Mysterious creatures of this planet. They can be seen everywhere—in the sky, the sea, the forests, and even in the cities. Riko, a girl from Paldea who possesses a mysterious pendant. Roy, a boy from Kanto who possesses a mysterious Poké Ball. A new adventure for Riko and Roy begins in the vast world of Pocket Monsters ! What encounters and destinies await them!? This is a story of "discovering" something important through adventure.