One plot idea could be that the reader is a newcomer to Maui's world. They accidentally cross paths with the determined girl Maui while on an adventure. Maui is on a quest to save her village from a mysterious threat, and the reader decides to join her. Along the way, they face various challenges that test their friendship and courage.
Another plot could be that the reader is from a different land but has a special power. Maui, being the determined girl she is, wants to learn about this power to use it for the good of her people. The two embark on a journey to understand the power better, facing magical creatures and ancient secrets along the way.