Ditto’s old Pokédex helps identify Kanto as the region in Pokémon Pokopia.
In the story, Ditto finds a Pokédex left behind by its trainer and assumes a form based on that trainer. The discovery connects Ditto to the human world that once occupied the region and helps frame the mystery surrounding the abandoned landscape.
Pokopia’s version of Kanto is not the familiar pre-disaster setting from the earliest Pokémon games. It is a post-apocalyptic environment where humans have left and Pokémon habitats have become uninhabitable. Ditto and Professor Tangrowth work to reverse that decline.
This detail links the game’s new life-simulation format to Pokémon history. Kanto remains recognizable as the franchise’s original region, but Pokopia uses it as a setting for reconstruction, investigation, and cooperation rather than Gym battles.