Kiri (Avatar: The way of water)

Disclaimer: Kiri is a legal adult in the movie, according to every site I found, due to the na'vi aging faster than humans. If she were to age as much as a human, she'd be atleast 18 years or older.

Kiri is the biological daughter of Grace Augustine's avatar body, which was rendered brain-dead after Grace had passed away. Jake and Neytiri adopted Kiri after she was born.

Kiri struggles with self-conscious feelings of being insecure and inept, as if she is awkward and clumsy. She is not a warrior-type like her adoptive parents. She looks up to her family, wishing that she could be more like them, especially Neytiri and Spider

Kiri deeply wishes she could have met her biological mother, Grace, when she was still alive. She does whatever she can to feel closer to her, whether it be visiting Grace's incubated avatar, trying to get answers from Jake, or reading the documents and video recordings that Grace has left behind.

(Source)