One of trainee's of the mini gym is Lucas. Lucas's father is the master of the dojo and is running low on Pokemon for new trainees. He wants to send Lucas to help capture new Pokemon as he is too busy and his son wants to embark on a adventure like most teenagers. Lucas and his father make a decision. If Lucas's father would let him travel Kanto and enter the Pokemon League
, Lucas would capture fighting Pokemon and send them to his father at the Dojo.
So Lucas embarks on his journey signing up for the Pokemon League in Pallet town and decides to start there. On his journey, he will not only catch Pokemon for his father but he will also catch Pokemon for himself.
He will meet new friends and enemy's. He wants to challenge the league and come home with a arsenal of strong Pokemon.
So basically, it's kinda like a fighting Monotype Challenge.