Maybe it's because such a concept adds an element of mystery and drama. People are drawn to the idea of a powerful figure facing unusual circumstances.
Well, your place could be determined by your unique abilities and goals. If you have powerful jutsu, you might belong with the elite warriors. Or if you have a heart for helping others, perhaps a community-driven village is where you fit in.
A successful fanfic typically combines creativity with respect for the original. It might introduce new conflicts or relationships that feel natural within the established world. And, it should have a clear beginning, middle, and end to provide a satisfying reading experience.