Sierra is a bit of a troublemaker and enjoys hiding some of Tioga's collections, making him have to find the objects all over again. It is a game that they play, and her little way of pointing out when he has been gone for too long. She dislikes when he insists on being away for too long keeping an eye out and protecting, but she also respects him for it. Sierra is a caring individual, though she will let it be known when she disagrees with something or insists on doing something her own way.