Sootopolis City, a traditional Trainer fought a battle against Wallace, the representative of Coordinators and established the prominence of Pokémon Contests.
Lilycove City, he attained the title of the youngest ever Senior Breeder, leaving a permanent mark in the records of the Breeder Association.
Returning to Cerulean City as a Trainer, he easily defeated Bug Catchers with a single Pokémon and dominated the battles against the shorts-wearing kids along the way.
This is actually a ordinary Pokémon fanfiction story, where the protagonist transmigrates to the real Pokémon world and embarks on a journey of exploration and personal growth, starting from Fallarbor Town.