Servant of the Goddess

The Servant of the Goddess is a character from The Legend of Zelda: Skyward Sword. She is a mysterious woman who protects Zelda from Ghirahim as they travel across The Surface.

Biography
For reasons unknown, the Servant of the Goddess needs Zelda to travel with her to the three temples on The Surface. She also helps Zelda unlock the true powers of the Goddess Harp.

It seems like the Servant of the Goddess is a member of the Sheikah tribe.