After defeating Sin, Yuna returned to her home on Besaid. The days passed without incident, but still she sensed something missing in her quiet existence. A movie sphere that Rikku shows her gives her a reason to journey once more. For now, life as a sphere hunter affords Yuna the chance to live on the wild side. Old habits die hard, though. Yuna still can’t walk away from people in need.
I would argue that Yuna is improved in the sequal; a much more gutsy and involved character. Very good!