>>23290035That she gradually develops from shy and uncertain to assertive and confident. The show clearly depicts her as talented and a quick learner, but hesitant and never sticks with anything long enough to become skilled at it.
Then she discovers tripokalons which are basically a perfect outlet for her existing talents and interests (fashion, dancing, performance) and a way to bond with her pokemon on a level more meaningful to her. It feels more significant than the way May and Dawn got into them. Same goes for when she takes action, because it's more of an emotional struggle against her fears.
Plus she's the nee-san to the best imouto in the world, and she's neither a bitch to nor platonic with Ash, unlike the other girls. She engages with him emotionally and inspires him.
Also she is cute as fuck and dat ZR.