Xayah reminds me of Chloe from Life is Strange
The attitude, the voice...The general dislike for everything human and living around her. Also the fact that she has a plucky energetic companion!
Just throw a beanie on her, and add some "hellas" and "shockabrahs" into her VO.
On that note, I think we should be able to get a punk rocker skin for Xayah. My life will not be complete without it.