Since they are on the run as missing - nin, they have to trust each other completely. This trust is the foundation for their relationship to grow. Naruto might discover new sides of Hinata, like her strategic thinking when they are planning their next moves. Hinata also gets to see Naruto's vulnerability, which makes their bond even stronger as they support each other through their fugitive life.
In many of these fanfictions, the danger they face as missing - nin forces them to communicate on a deeper level. Hinata, who has always been shy around Naruto, becomes more assertive in expressing her feelings. Naruto, in turn, becomes more protective and understanding of Hinata. They grow together through the various challenges like fighting off other ninjas who are after them.
Another idea is that Naruto and Hinata go missing - nin to explore a dark power that is threatening the ninja world but is being ignored by their village. They sacrifice their status in the village to do what they think is right. Their relationship deepens as they face the difficulties and moral dilemmas together.
Naruto's character might become more cynical as a missing - nin. He's been rejected by the village he loved, so he could lose some of his naivete. He might also become more of a lone wolf, relying on his own strength rather than the power of friendship like he used to. Sasuke, however, could start to soften. Away from the influence of Orochimaru and his revenge - driven past, he may see the value in Naruto's way of thinking more. For example, he might start to care about the well - being of others outside of his own goals.
Perhaps the missing nin discovers new abilities within the Rinnegan that no one else has. They might be able to combine different paths in unexpected ways. For instance, using the Animal Path to summon creatures and then enhancing those creatures with the power of the Asura Path. This would make their summoned beasts more powerful and difficult to defeat in combat.
If Naruto and Temari were missing nin in a fanfiction, it could start with a misunderstanding. Naruto might be framed for a crime he didn't commit and Temari, believing in his innocence, decides to help him escape. They then have to live on the run. Along the way, they meet other outcasts and form a sort of rebel group. Naruto's ability to make friends easily and Temari's strong leadership skills could be the driving force behind this new group's growth.
Kimimaro could be an interesting missing nin character to explore in fanfiction. He was a tool for Orochimaru, but had his own internal struggles. You could write about his life before fully becoming a missing nin, his loyalty to Orochimaru despite his own deteriorating health, and what might have happened if he had broken free from Orochimaru's control. Another character could be Nagato. Before he became Pain, he had experiences that could be considered as leading towards a missing - nin - like existence. His views on peace and his use of the Akatsuki could be delved into in the context of a missing nin story.
Often, it develops from Hinata's long - standing admiration for Naruto. In the context of Naruto being an emperor - like figure, Hinata's respect for him grows even more. Naruto, in turn, begins to see Hinata in a new light, realizing her loyalty and strength. This mutual understanding and respect deepen their bond.
One great source for Naruto and Hinata fanfiction could be FanFiction.net. You can search for stories specifically focused on their relationship there. There are often new and interesting takes on their story, from how they first fell in love to their married life in the future.
One possible fanfiction could be about Sasuke becoming a missing nin again. Naruto and Sakura, now more powerful, set out to find him. They face many challenges on their journey, like dealing with other villages that want Sasuke for their own purposes. Naruto still believes in saving Sasuke from the darkness that led him to become a missing nin in the first place.
A great fanfiction idea could be that Sakura becomes a missing nin after an incident in the village. Naruto and Sasuke, who have their own issues, must now work together to find her. Along the journey, they realize how much they need Sakura in their lives and also discover some secrets about the village that made Sakura leave. This would be a story of self - discovery and friendship.
In these fanfictions, their relationship grows in the chaos of the zombie situation. For example, Naruto might become more aware of Hinata's strength and loyalty as she saves him from zombies. Hinata, on the other hand, sees Naruto's determination to protect everyone, including her. This mutual admiration and the need to survive together bring them closer. They start to communicate more openly and support each other, which is different from their normal, pre - zombie relationship where there was more shyness between them.