Sometimes, in fanfiction, the Black Fox is a spirit that has some connection to Naruto's past. It could be a result of some long - forgotten experiment by an old clan. And Naruto, through his exploration of his family history, discovers the truth about the Black Fox and has to deal with it to move forward in his life and ninja career.
Another storyline could involve the Black Fox being a form of dark chakra manifestation. Naruto, with his strong will and positive chakra, has to find a way to purify or defeat it. This often ties into the themes of light vs. dark that are prevalent in Naruto. Maybe it's related to an old enemy's last - ditch effort to destroy Konoha by creating this Black Fox.
One popular storyline is the fox pet having unique abilities that help Naruto in battles. For example, it might be able to sense danger before Naruto can and warn him. Another is the fox pet forming a special bond with Naruto that allows them to communicate telepathically. This bond often deepens as they face various challenges together.
A typical storyline might involve Naruto being in a village where his fox features are both feared and revered. The girls in the harem are initially curious about him. As the story progresses, Naruto discovers new powers related to his fox features. This attracts more attention, not just from the harem but also from other powerful forces. The harem members then have to deal with jealousy from other villagers as they get closer to Naruto. Meanwhile, Naruto uses his new - found powers to protect the village and his relationships within the harem, and through these experiences, their love and bonds grow stronger.
One common storyline is the transformation or connection between characters and these animals. For example, in Naruto fanfiction, a character might gain the ability to transform into a wolf or have a special bond with a fox spirit. In Inuyasha, there could be a story where a human character has a connection with a dog demon. Another storyline is the battle between different animal - based powers. A wolf - like character in Naruto fanfiction could fight against a fox - based enemy, inspired by the Nine - Tailed Fox. In Inuyasha, a dog - like demon might battle a fox demon over territory or a magical item.
One possible storyline could be the female Naruto having a unique bond with the 9 - Tailed Fox. Maybe she discovers new powers within herself because of their connection. For example, she could learn to use the fox's chakra in a more refined way than Naruto did in the original series. Another idea is that she has to deal with the prejudice from the village because she is a female with the 9 - Tailed Fox inside her, but she overcomes it through her determination and kindness.
Often, there are storylines where the concept of karma is intertwined with the in - game factions. If a character betrays one faction, they might face negative karma and consequences like being hunted down. Or, if they help a weaker faction, they could gain positive karma and earn allies. It can also be about how a character's karma affects their relationships with other characters. A character with good karma might be more trusted and form deeper bonds, while one with bad karma is shunned.
One popular storyline could be the fem Naruto exploring her unique connection with the Kyuubi. Maybe she discovers new powers related to the fox tail. For example, she might be able to use it for enhanced speed or stealth in battle. Another could be her facing discrimination in the ninja world because of her femininity combined with the Kyuubi's power, and then rising above it to prove herself.
One popular storyline could be a female character wearing the Kyuubi fox costume and using it to gain special powers in the Naruto universe. She might start as an underdog but with the costume's supposed powers, she could become a strong ninja. For example, she could use the fox - like agility to outmaneuver her opponents in battles.
In Naruto fanfiction about Kiba mates, there are storylines centered around Kiba protecting his mates. This could be from an external threat like a powerful rogue ninja or an internal threat within the village. His mates could also play a role in Kiba's character development. If his mate is a more pacifist - minded character, they might influence Kiba to think more about peaceful solutions to problems. Additionally, there could be storylines where Kiba and his mates participate in ninja tournaments or competitions together, showing off their combined skills and teamwork.
Transformation might be a theme. Given that it's a black fox, there could be elements of the fox transforming, either physically or in terms of its abilities. This could add an element of magic or the supernatural to the stories. There might also be themes related to nature. Since the fox is an animal, the stories could explore the connection between the black fox and the natural world it inhabits, such as how it uses the environment to its advantage or how it protects its territory in the wild.
Often in fanfiction, there could be a story about Kushina's influence on Naruto's growth. It could show how her spirit or some hidden knowledge she left for Naruto helps him in difficult situations. It might also involve Kushina interacting with other characters like the other Jinchuriki in a different way than in the canon story, perhaps forming a sort of Jinchuriki alliance.