The nin dog could change Naruto's life by making him more responsible. Since he has to take care of the dog, he'll have to think about someone else's needs. For example, he'll need to make sure the dog is fed, trained, and healthy. This will give him a new sense of purpose outside of his normal ninja training and goals.
The nin wolf might be a gift from a powerful ninja in the fanfiction. Maybe as a sign of Naruto's growing power or a new mission he has to undertake. It could also be a wild creature that Naruto tames during his travels.
The nin wolf could make Naruto more respected among his peers. Other characters might see Naruto as having an even greater potential with this powerful ally by his side. Some might be a bit jealous, like Sasuke, who could see Naruto's nin wolf as another way Naruto is getting stronger faster.
One great 'Hunter Nin Naruto' fanfic is 'The Hidden Hunter'. It has an interesting plot where the main character, a hunter nin, discovers a hidden power within Naruto. The story is filled with action and unique interpretations of the Naruto world.
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.
Well, in Naruto fanfiction, Kakashi Hatake can also be considered among the first male nin. He is a highly skilled and experienced ninja. He serves as a mentor figure in the series. His unique abilities like the Sharingan and his cool demeanor make him a popular character in fanfiction as one of the early important male ninjas.
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.
The fanfiction could also explore the relationships Fem Naruto builds as a medic nin. She would interact with other medical staff, patients, and even the ninja she heals. This could lead to new friendships, rivalries, or even romances. For instance, she might develop a special bond with a fellow ninja she repeatedly heals, which could turn into a deeper relationship over time.
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.
In 'naruto hunter nin fanfiction', the theme of identity is quite common. Hunter nins often have to hide their true identities, and this can lead to stories about self - discovery and acceptance. Another theme is the struggle against corruption. Sometimes, within the system of the village, there are corrupt elements that the hunter nins have to deal with. And, the theme of friendship and camaraderie also exists, as they form bonds with other ninjas, both hunter nins and regular ones, during their adventures.