A possible plot could be that there is a threat that only Naruko's powers combined with the technology of Big Hero 6 can defeat. So, they have to work together to combine her ninjutsu with Baymax's medical knowledge, Hiro's inventions, and the others' skills. Along the way, Naruko forms strong bonds with each team member and they learn from each other's strengths and weaknesses.
Another plot could involve Naruko accidentally traveling to the world of Big Hero 6. She then has to learn about the technology there while also teaching the team about her own world's powers. For example, she could show Hiro how to use chakra to enhance his inventions. The team could also help her find a way back home while facing various challenges together.
Maybe a fanfiction where they are all in a different timeline. Naruto and Naruko are from a more peaceful Konoha, and Satsuki has been sent there as an ambassador of sorts from her village. At first, there are misunderstandings, but as they get to know each other better, they start to work together to improve relations between their villages. They learn from each other's cultures and ninjutsu techniques, creating a unique bond.
One idea could be that Naruto, Narumi, and Naruko are on a mission together. During the mission, they discover a hidden power that only they can unlock when they combine their skills. This leads to a series of adventures where they have to learn to trust each other more and more.
One idea could be a time - travel plot where Naruto, Naruko (presumably a female version of Naruto), and Kushina are all brought together in a different era. They could team up to face a new and powerful enemy that threatens the very existence of their clan or the village. Another could be a story where they are all in a training session together, with Kushina teaching the two younger ones some of her unique ninja techniques.
Well, it could be that clone Naruko has memories from Naruto's past that he has forgotten. As they interact, these memories start to surface. This leads to them exploring parts of Naruto's history that he never fully understood. They might also find that clone Naruko has a connection to an ancient power that was somehow linked to Naruto's family in the past. And as they figure all this out, their relationship grows stronger.
One idea could be that Naruto discovers the Naruko clone has unique abilities that no other clones possess. Maybe she can communicate with animals in a special way, and they go on adventures together to explore this new power.
One idea could be that Naruko and Sasuke are paired for a school project. They start off disliking each other but as they work together, they discover each other's hidden depths and start to develop feelings. Another could be a highschool sports event where Naruko is a cheerleader and Sasuke is a star athlete, and their paths cross in unexpected ways. A third plot could be that they are in a mystery club together and have to solve a mystery within the school which brings them closer.
One idea could be that Naruto, in a different reality where Naruko exists, has to navigate through a series of challenges while being part of a harem. For example, he might have to prove his worth to each member of the harem, including Naruko. Another plot could involve a mysterious force that brings the harem together and Naruto has to figure out how to keep everyone happy and safe.
One idea could be that Naruko, with her ninja skills, and Miles Morales, with his spider - abilities, team up to fight a common enemy in a dimension - hopping adventure. Maybe a villain is stealing energy from different universes and they have to use their unique powers to stop it.
Well, a possible plot could be centered around their journey to prepare for the baby. They might travel to different places to find the best midwife or special herbs for a healthy pregnancy. Also, there could be a sub - plot where their friends, like Sasuke and Sakura, help them train while Naruko is pregnant so that she can still defend herself if needed. It could add an interesting dynamic to the story.
Well, one idea could be Naruto and Naruko going on various adventures together within the harem setting. They might face challenges that test their relationship and the dynamics of the harem. Another could be the exploration of different character interactions within the harem, like how the other members react to Naruto and Naruko's relationship.