Eris' voice is really up to you, interprete her as you wish.

Eris is a sneaky, spunky, forward-thinking 25 year old that, despite being older than Julia, is more carefree and laid-back than the Princess. Life is all about living, regardless of where you come from or what you are. Due to her carefree nature, Eris sometimes finds herself in more trouble than she'd like to admit. She lives for tomorrow, and is willing to do whatever it takes to keep the people she cares about happy, even if that means she has to sacrifice her own happiness.