One interesting plot could be that Fem Naruto, with her determination, teams up with Futa Kaguya. Maybe they are on a quest to bring peace to a land torn by war. Fem Naruto's combat skills combined with Kaguya's unique powers would make for an exciting adventure.
The relationship might develop through a mutual understanding of loneliness. Both characters have had their share of isolation in different ways. Fem Naruto was an outcast as a child, and Kaguya has been alone for a long time. They could bond over this shared experience, and as they open up to each other, their relationship could become one of deep trust and companionship.
Yes, there are likely many Naruto fanfictions that involve Kaguya and explore her various characteristics. Some might focus on her power, her origin story, or her role in the Naruto universe. However, without specifically searching through fanfiction databases, it's hard to be more precise.
Kakashi can be a popular character too. His wisdom and combat skills can be useful in fanfic scenarios involving Kaguya. He could be a mentor figure to Naruto, guiding him in dealing with Kaguya - related threats or helping to decipher ancient ninja knowledge related to Kaguya.
Yes, there are likely some fanfictions that explore a special connection between Naruto and Kaguya. In some fanfictions, authors might create scenarios where Naruto, due to his unique abilities and kind - hearted nature, manages to reach out to Kaguya in a way others couldn't. This could involve him understanding her past and trying to bring some form of redemption or peace to her.
To develop Kaguya further, you could show her relationship with other characters in a new light. Let's say she had a friendship or a mentorship with an unknown character in the past. This relationship could have influenced her actions and decisions. It would also add more depth to her character and make her more relatable. Additionally, you could show how she might adapt to the modern ninja world if she were to return, which would require her to change her old - fashioned ways of thinking.
In the fanfiction, Naruto could enter Kaguya's mind. He might discover her past traumas that led her to become so power - hungry and vengeful. By understanding her pain, Naruto could offer her forgiveness and a new path. He could show her a vision of a future where she is part of a united world, not feared or hated, but respected and loved if she changes her ways. This could be a powerful incentive for Kaguya to change.