Aonung x Siobhan: Opposites Attract

What if Avatar: the way of the water wasn't about the relationship of Lo'ak and Tsireya?, what if Avatar: the way of the water was about the relationship of Siobhan and Aonung?

Siobhan Sully was born as the oldest daughter of Jake and Neytiri Sully, the younger twin sister of Neteyam Sully and she's the outcast twin like her father, Siobhan is always putting herself into danger and she is the female version of her father but Siobhan has always felt like an outsider because of her human-like biology and her father's disapproval of her rebellious attitude. One day, Siobhan meets Aonung, the chief's son of the Metkayina clan and she starts to fall in love with him while they begin to follow down the same path as her own parents.

As time went by Jake Sully and Neytiri have formed a family and are doing everything to stay together. However, they must leave their home and explore the regions of Pandora. When an ancient threat resurfaces, Siobhan and her family must fight a difficult war against the humans.