>>56556670Her name is Harley and she was a rival to one of the player characters. The setting was Johto in a time after people stopped being afraid of Pokémon and before they started seeing them as friends (so after Legends: Arceus). Players characters and NPCs of their same age were the first generation to start seeing them this way and Celebi charged them with helping go against tradition.
Harley moved to Johto from Kalos, because the current champion was trying to better organize the League and make it safer for everyone so that even a ten year old could wield Pokémon. She wears her late dad's battle jacket as a reminder that she has to win enough tournaments to help move her family away from the more violent Kalos League.
First half of the campaign was spent pushing back against traditionalists and helping the champion. Was a good time and I've run the game twice and each play group has really liked Harley a lot.