Vida (VEE-da) is headstrong, but reluctant. Due to her very sheltered upbringing, she feels something of an outcast. This is further exacerbated when she learns the truth about her nature. She is methodical and thinks before acting; sometimes thinking for a bit too long. She feels burdened by the weight of the responsibility that has been placed upon her shoulders and fears what failure might mean for the already-suffering world.  

Vida is a young woman in her mid-to-late teens. I imagine her with a cold, dry voice, with a medium to low range for her age. She'd cold and calculating, and she's often more than a little insensitive. She's pragmatic, even if she does overthink things.