Cia was originally the Guardian of Time tasked with watching and keeping the balance of the Triforce; however, she eventually began to harbor romantic feelings for the hero Link. These affections turned into jealousy towards Princess Zelda, a close friend of Link's. As Cia's resentment grew, she became vulnerable to the will of an evil being that was thought to have been sealed away long ago. With the light half of her soul driven from her body, Cia was corrupted by the darkness in her heart.