From Zelda Legends Wiki
Link's grandma is a sweet little old woman who lives on Outset Island with her two grandchildren and cooks Elixir Soup for them.
Birthplace: Outset Island Personality: Worrywart
This kind old woman works hard to raise her two grandchildren. She's a very talented cook - her special Elixir Soup is sure to raise anyone's spirit.
She can be somewhat mischievous and enjoys playing the occasional prank on Link.
After receiving the Hero's clothes:
Link, have you seen your sister, Aryll, this morning?
I wouldn't be surprised if she's climbed up to her favourite spot to play with the gulls again today.
I've always thought it quite odd... She's the only person I know who the wild gulls will even approach.
After Tetra is dropped in the forest:
Link! What's the matter? What's happened?
Where is Aryll?
I know she's a good girl who behaves herself, but she's still just a child. You mustn't let your eyes off of her.