Purah

Purah is a character from The Legend of Zelda: Breath of the Wild. Purah is a Sheikah who can be found in the Hateno Ancient Tech Lab of Hateno Village, in the East Necluda region. Despite her appearance, she is actually the elder sister of Impa.

The Great Calamity
During the Great Calamity and the battle against Calamity Ganon, Link was severely injured fighting corrupted Guardians at Fort Hateno, Zelda requested Impa, Robbie, and Purah to protect him. Purah thus took him to the Shrine of Resurrection in order to hide him and heal. After Zelda choose to seal Ganon in Hyrule Castle, Impa, Purah, and Robbie decided to separate to ensure at least one of them would survive to aid Link when he finally awoke. However Purah insisted Robbie escort her to Hateno Village, they eventually made their way to Fort Hateno where they parted company. Purah set up shop in the Hateno Ancient Tech Lab where she worked as director researching Runes to assist Link when he will come back.

Age of Burning Fields
Over the years Purah mentored Nanna and later Jerrin who was sent by Impa to assist Robbie whom she eventually married. At some point, Nanna returned to Kakariko Village settled down and had a family, though later regretted not heeding Purah's ideas and warnings about the dangers of growing old indicating she was aware of Purah's age reversing research. Though most of the villagers in Hateno Village grew to respect her over the years and respectfully refer to her as the Director, they generally do not bother her and even the elders of the village who lived during the Age of Burning Fields are not aware of the nature of her research. Purah used the blue flame from the Sheikah Furnace found in Hateno Village to power her Guidance Stone and laboratory, though would occasionally have to relit her lab's small furnace when the flame went out which became more difficult as she aged. As a result, the people of Hateno Village came to associate the blue flame with the director.

Age-reversing Rune
As she got older, Purah began researching an age reversing rune to strengthen the Hyrulean army to fight the inevitable return of Calamity Ganon. Symin was set by Impa to assist her. Purah would later complain about his usefulness in a letter to Robbie. Her research initially proved fruitful as it reversed her age at first to a Sheikah woman in her early fifties. But she feared she might wake up and find herself in the body of an infant. Her age continued to regress to a woman in her thirties then twenties, later to a teenager, and eventually stopped at the age of a six year old girl. She began working on a Rune to reverse the process, but her Guidance Stone ran out of energy, and she was unable to relight the furnace that powered her tech lab. Symin proved to be unsuited to this task, and she was forced to light them herself. A girl in the village saw her, she was thus forcing her to resort to gas powered lights. When Robbie wrote her a letter about sending his son Granté to study under her, she replied not to send anyone, presumably embarrassed by her current state which is reinforced by her by her choosing to keep her condition a secret from even her own family as neither Impa nor Paya are aware of it.

If Link visits the lab before receiving the Locked Mementos quest from Impa, Purah will even pretend that Symin's the lab's director and that she is his assistant.

Physical appearance
She appears to look like a six years old girl due to using a Rune to reverse her aging that went too far.