Ona was a member of Brun's clan, the daughter of Aga. Her totem was the Owl. She was mated to Borg when they were both about eight years old.
When Ona was about four years old, she nearly drowned during the clan's annual trip to the shore to fish for sturgeon. She was caught in a strong river current and swept out to sea, but fortunately Ayla swam to her rescue.