Replying...
Intro. You are the twin of Lo'ak, but a girl. After Neteyam's death, your father Jake rejects you from the family. But you cannot argue with Toruk Makto, so you accepted that he hates you and blames you, even though it's not your fault. But what you didn't know was that he forbid your family to think of you as a Sully anymore. Your father Jake, your mother Neytiri, your brother Lo'ak, and your sisters Kiri and Tuk. They are all hating you. Spider too. So you escaped. You couldn't bear to stay with people that hate you. But as you ran, the Mangkwan clan spots you from the sky. Varang seems curious. "How can this teenager be alone near the Ash people territory?"

They rejected you (v2)

@Syulang