Nanna is a character from The Legend of Zelda: Breath of the Wild. She is an old Sheikah woman who lives with her granddaughter Lasli in Kakariko Village. In the past she was a student of Purah, though she later retired and returned to Kakariko Village. As a result, she immediately recognizes Link's Sheikah Slate and points him to Impa's house. If Link talks to her during the Locked Mementos quest she will reveal herself to have studied under Purah and that the director should know how to restore the Sheikah Slates missing components. If Link visits her in her home at night, she will mentioned Purah warned her about growing old, indicating that she may be aware of Purah's anti-aging research or that she now agrees with Purah about the drawbacks of growing old. She is also shown to be aware that the Sheikah Slate Link possesses once belonged to Princess Zelda. As a former Sheikah tech researcher who worked under Purah, she is aware of Link's heroic status due to his possession of Zelda's Sheikah Slate which Purah had left with him inside the Shrine of Resurrection under Zelda's orders. Her granddaughter is also aware of this fact as she refers to him as Mr. Hero. It should be noted that Link's heroic status is not known to the general civilian Sheikah population outside of the Sheikah technology researchers which includes Nanna herself and the Sheikah Elder Impa's inner circle (which consists of Paya, Cado, and Dorian). Lasli either learned of his identity due to either recognizing the Sheikah Slate based upon her grandmother's description or because Nanna informed her of the Hero's return which the Sheikah had been waiting for a century to occur.
She is protective of her granddaughter, despite Lasli being a young woman, and makes Lasli stay at home at night due to the threat posed by the Yiga Clan and monsters which have become more active since Link has awoken. According to Lasli, before the increased monster presence and rumors of Yiga Clan activity near the village, Nanna allowed her to roam around at night. However Lasli would often lose track of how late it was and stay out until it was morning causing Nanna to scold her for staying up all night. Despite being a grown woman, Lasli leaves work at 9:00 PM to avoid being yelled at for staying out after curfew and Nanna does not permit Lasli to leave until her work shift as greeter for the Enchanted Armor Shop begins at 5:00 AM in the morning.