In 'naruto s class missing nin fanfiction', the theme of identity is quite prominent. These S - class missing - nins struggle with who they are, whether they are truly evil or just misjudged. Another common theme is loyalty. Some stories explore if they can still have loyalty to their former villages or comrades. And the theme of revenge also appears sometimes, where an S - class missing - nin seeks revenge for something that happened to them in the past.
A really cool 'naruto s class missing nin fanfiction' is 'Rebel S - Class'. It's about an S - class missing - nin who rebels against the traditional ninja ways. They form their own group and start to change the power dynamics in the Naruto world. The story is full of action and interesting character developments. Another one is 'S - Class Unleashed' where the S - class missing - nin reveals their true and extremely powerful abilities, causing chaos and also a new form of order in the Naruto world.
One idea could be exploring the backstory of an S - class missing - nin. Maybe they had a noble reason to turn their back on the village at first, like trying to protect a loved one from a corrupt system within the village.
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.
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.
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.
Kakashi could also end up being an ally. Despite his loyalty to the village, if he discovers the real reasons behind Naruto's departure and realizes that the village has made a mistake, he might choose to help Naruto secretly. He has a deep bond with Naruto and would not want to see him in harm's way.
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.
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.
Give them a distinct physical trait. For example, an S - class missing - nin could have heterochromatic eyes, one blue and one red, which is a sign of a special bloodline or a curse. This would make them stand out.