Well, definitely Kurama. He has that whole backstory of being sealed and kind of neglected in a way. And then there are some minor Kitsune characters from the original Naruto series that get more development in these fanfictions. For example, those Kitsune that are mentioned briefly but not explored much in the official story can become popular in the neglected Kitsune fanfictions as authors expand on their stories.
One of the popular characters is Kurama. His power and his connection to Naruto make him a great candidate for these types of fanfictions. Also, some Kitsune spirits that are not as well - known in the main Naruto storyline can become popular in neglected Kitsune fanfiction. These characters can be given more depth and backstory in the fanfictions, which attracts readers who are interested in exploring new aspects of the Naruto world.
Kurama is often a popular character in such fanfictions. Since he is a Kitsune and has a complex relationship with Naruto, he can be a central figure in stories about neglected Kitsune. Another could be some original Kitsune characters created by the fanfiction authors. These characters can bring new perspectives to the neglected Kitsune concept.
There are also original characters in some Kitsune Naruto fanfiction. These could be other Kitsune spirits or characters with knowledge about Kitsune lore. They add new dimensions to the story, like an old Kitsune sage who mentors Naruto on his journey to understand and master his Kitsune heritage.
Naruto himself is extremely popular as the main character who has the Kyuubi within him. Writers often focus on his growth and how he uses the Kyuubi's power. Another popular character is Sasuke. In fanfiction, he might have different reactions to Naruto's newfound powers related to the Kyuubi. He could be jealous, or they could form an even stronger bond as they face new threats together.
One possibility could be an original character created specifically for the fanfiction. This gives the writer the freedom to shape her personality and backstory completely. Another could be a minor character from the Naruto series that doesn't get much attention, like Tenten's sister if she had one. It could also be a reimagined version of Hinata as Naruto's sister. Since Hinata has her own story in the original series, reimagining her as Naruto's sister with a neglected past could lead to some interesting fanfiction ideas.
One common theme is the feeling of isolation. In these fanfictions, the Kitsune characters are often neglected, so they are isolated from the main Naruto world. Another theme could be self - discovery. As they are neglected, they have to find their own path and identity. And also, themes of redemption can be present. They might strive to prove themselves worthy despite being neglected.
The Kitsune Dragon Knight's love interest can be a popular character in fanfiction. It could be another Kitsune from a different clan, or perhaps a human with a special connection to the duo. This character can add a romantic subplot to the story, which many readers enjoy. Another popular character could be the blacksmith who forges the Dragon Knight's weapons. They might have a special relationship with the main characters, providing them with unique weapons and armor that are crucial for their adventures.
Obviously Naruto is one of the main characters since it's in the title related to him. And the Kitsune, which is likely to be a central figure as the one who needs to be forgiven by Naruto.
It's likely that Naruto would be one of the main characters. He is the protagonist of the Naruto series and would probably be at the forefront of dealing with the Kitsune virus. Sakura might also be involved as she is a skilled medic - ninja and could be crucial in finding a cure. Sasuke could also play a role, especially if his unique powers are somehow related to combating the virus.
I'm not sure specifically who the main characters are in this particular fanfiction without reading it. It could be an original character with Kitsune traits, or it might center around Naruto or other known Naruto characters who have some connection to Kitsune elements.
Obviously, Naruto would be one of the main characters. Since it's about him being the son of a Kitsune, he would be central to the story. There might also be other characters from the Naruto series like Sasuke and Sakura, who could be involved in Naruto's journey regarding his Kitsune heritage. And of course, there could be some original characters created specifically for this fanfiction, perhaps other Kitsune or those who know about Naruto's true nature.
I'm not sure specifically as it's a fanfiction and can vary greatly. But it could potentially have Naruto characters like Naruto himself or Sasuke, combined with some Tokyo Ghoul characters like Kaneki. Maybe there are also some original characters created for this fanfiction.