This is a multi-racial world. All species are highly intelligent, but humans, as mediocre beings among them, have become the most powerful race. This is due to the existence of the Poke Ball. Once humans defeat other more powerful races, they will be captured by the Poke Ball. After they recover, the captured creatures are collectively called elves, and the elves are completely obedient to the trainer.
After that, humans unified the entire world, and a peaceful country of multiple intelligent races headed by humans emerged.
