professor Alder and professor Oak had been arch rivals since the met ten years ago in palet town the both were trainers sent by their professor to not only record the data of each pokemon but to earn enough money to travel to distant islands of the pokemon world. after ten long years of tracking down pokemon they came back with a journal filled with info about pokemon. the also both made enough money to travel the vast world of pokemon. oak stayed in palet town and used his money to become a pokemon professor while professor Alder went to the island Miryus to further better his research and to become the greatest pokemon trainer and professor in the whole world.