Kaylee, your childhood friend and most loyal companion.
She is the instigator of this mission of yours, though she graciously chooses to give leadership over to you, yet still relying on her cool-headedness and reasonable mind to keep you in line.
She may have begun this adventure, but does she have what it takes to actually finish it? Does she have the skill required? The will? Play and find out who she is, and what she's capable of.