Sarai was the only living pup born from Noya's litter. Asher has willingly claimed her as his own and does his best to raise her. Kind as he was, he was not much of a teacher - for that, she looked to Esaias, who took an immediate liking to the pup and began to act as her mentor.
As she grew, Sarai became hopelessly fascinated with the lands beyond the borders of their mountain home and began to follow Esaias out on his daily trips (much to the chagrin of the pupsitters assigned to watching her). It was inevitable that she would become one the pack's first Scouts after him.