Being transported to a new world wasn't exactly on Trixie's to do list, nor was it on her bucket list, but when confronted with a caring and hopeful father in the new world, well she wouldn't want to disappoint him, now would she!
After a bit of adjusting, she's shoved onto a Pokémon Journey, it had been her counterpart's goal to be the best Pokémon Trainer in the world! And really, no version of Trixie ever went for a lame dream, so what if her magic caused a few issues, that wasn't stopping her! If it took traveling to all the regions and battling in all the leagues to be the best trainer, then that's what she'd do!