Kanto

Kanto is Ash's home regions and where The Greatest There Was or Ever Will Be: Kanto League Journeys takes place.

The Kanto region is a region of the Pokémon world. It is located east of Johto, and is located south of Sinnoh. All cities in Kanto are named after colors (Viridian City, Lavender Town, Indigo Plateau, etc.), with the exception of Pallet Town, which is also a reference to color. Professor Oak is the resident Pokémon Professor and gives Pokémon Trainers a choice between Bulbasaur, Charmander, or Squirtle as their starter Pokémon. The Kanto region is home to a lot of Pokémon and has a rich history of creating Pokémon with technology.

Researchers of Kanto have been great at their job.