In many Naruto and Ahri fanfiction stories, Naruto is the protagonist we know from his own series, with his goal of becoming Hokage still in play. Ahri, on the other hand, brings her unique skills and personality from League of Legends. Their interactions can range from Ahri being curious about Naruto's ninja world to them falling in love. Sometimes other characters from Naruto's world, like Sakura or Kakashi, might also be involved to add more depth to the story.
I think Hinata would be an interesting character to include. She has her own unrequited love for Naruto. Her presence could add some drama to the story as she sees Naruto getting closer to Ahri. Another good character could be Jiraiya. His lecherous yet knowledgeable self could provide some comical relief and also give some sage advice to Naruto and Ahri when they need it.
They can interact through combat. For example, if there's a misunderstanding at first, they might fight. Naruto would use his ninja techniques like the Rasengan, and Ahri would use her speed and agility as a wolf. But then they realize they are on the same side. Another way is through sharing knowledge. Naruto can teach Ahri about ninjutsu, and Ahri can teach Naruto about the secrets of the forest.
In some Naruto and Ahri fanfiction, they could be on a journey together to discover a powerful and ancient artifact. Along the way, they meet different characters from both their worlds. Ahri's intelligence and Naruto's determination would make them a great team. They would face many challenges like solving puzzles, fighting off other powerful beings who also want the artifact, and learning to trust each other completely.
Well, it might start with Ahri being hunted by some dark ninjas because of her unique powers. Naruto comes to her rescue. After that, Ahri decides to follow Naruto out of gratitude. Along the way, Naruto teaches Ahri about the concept of friendship and loyalty in his world, while Ahri shows Naruto some of her natural instincts for survival in the wild. Their bond grows stronger as they face challenges like powerful demons and rogue ninjas.
The main character is Ahri in the Ahri Star Guardian story. Besides her, there are other Star Guardians. These characters each have their own unique abilities and personalities. They support Ahri in the battles against the dark forces. For instance, some might be good at combat, while others are better at providing support or strategic planning. Together, they form a team that is essential for the protection of their world.
One idea could be that Naruto is on a mission in a new land and he meets Ahri. Ahri is initially suspicious of Naruto but as they face some common enemies together, they start to trust each other. Another plot could be that Ahri somehow gets transported to the Naruto world and Naruto has to help her get back home while also protecting her from those who might want to use her powers.
It's difficult to say for certain. Fanfiction can cover a huge range of ideas and concepts. While Naruto has its own lore and established family relationships, the idea of bringing in Ahri as Naruto's mother and a female Kyuubi in a fanfic is a very unique and unexpected combination. There could be some very small or new fanfiction works exploring this idea, but it's not something that would be easy to find without a dedicated search through the many Naruto - related fanfiction platforms.
We should avoid the improper 'ahri futa fanfic' concept. In proper fanfics, Ahri is a character full of grace. She has a connection to nature due to her fox origin. Her interactions with other League of Legends characters are also a big part of her character portrayal. Writers often explore how she uses her charm and wits to navigate the complex world of the League, and how her past as a spirit shapes her present actions and relationships.
Sasuke is often a main character in such fanfictions. He could be Naruto's right - hand man, using his skills and intelligence to support Naruto's rule. Their relationship might be more complex, with Sasuke having to come to terms with Naruto's new position of power.
There could also be some original characters created specifically for this fanfiction. For example, a powerful ninja who has knowledge about the merge process and tries to either help or hinder Naruto. Or perhaps an ancient spirit that was somehow involved in the creation of Dark Naruto in the first place and now has an interest in the merge.