The main characters in the Moana original story are Moana and Maui. Moana is the brave heroine who sets out on a journey to save her island. Maui is the demigod who accompanies her on her quest.
A group of outcasts from different islands might kidnap Moana. They feel that they have been wronged by the 'normal' society that Moana represents. They hope that by kidnapping her, they can get the attention they deserve and force the islands to change their ways. But Moana listens to their grievances and tries to find a way to help them while also finding a way home.
Moana herself is the most important character. She is the brave protagonist who sets out on a journey. Maui is also crucial. He is a demigod with superhuman powers who Moana teams up with. Her grandmother also plays an important role. She encourages Moana to follow her heart and is a source of wisdom for her.
In the real Moana story, Moana herself is a main character. She is a brave and determined young woman. Maui is also a key character. He is a demigod with great strength and a complex personality. He plays an important role in Moana's journey as she needs his help to complete her mission.
Moana is the central character in 'Moana the Old Story'. She is a young and determined girl. Maui is also a main character. He is a demigod with special powers. He has a complex personality and at first is not very cooperative with Moana, but later they work together.
One popular trope is the 'What If' scenario. For example, what if Maui didn't leave Moana at some point in their journey? Another is the 'Hidden Relationship' trope, like Moana having a secret connection to another character from her island's past. And the 'Character Development Expansion' is also common, where a writer delves deeper into Maui's backstory, perhaps exploring his early days as a demigod and how he became the Maui we know in the movie. Fanfictions often play with these ideas to create new and interesting stories within the Moana universe.
Moana is indeed an original story. The filmmakers came up with the concept and characters from scratch to bring a unique and engaging narrative to the screen. There are no direct ties to any previously existing tales.