Cinder Fall could be another character in the fanfic. If Ruby's change makes her more powerful, Cinder might see her as a threat and try to either eliminate her or use her for her own evil plans. Their interactions would add a lot of tension and action to the story.
Definitely her team members Weiss, Blake, and Yang. Since they are always by Ruby's side in the original RWBY series, they would play important roles in this fanfic as well. They might be the ones to first notice Ruby's change and try to help her understand and control it.
Weiss could be one of the characters. Since she's part of Team RWBY and has a complex relationship with Ruby, it would make sense for her to be involved. Another one might be Blake. She has her own story arc and her relationship with Ruby could be explored through these kisses.
Sasuke could be involved. Since he has a complex relationship with Naruto, if Naruto becomes 'Red X', Sasuke might be either an ally or an antagonist depending on the nature of 'Red X'. Another character could be Kakashi. As Naruto's mentor, he would surely notice the change and try to guide Naruto through it.
Well, obviously Ruby herself. Then there's her teammates Weiss, Blake, and Yang. Depending on the nature of the relationship in the fanfiction, Yang might be deeply affected if it's a family - like bond that's breaking. Weiss could be involved in trying to mediate or give her two cents on the situation from her logical perspective.
Well, it could be about Ruby facing some kind of extreme situation or transformation that turns her into a more 'red' version of herself. Maybe she discovers a new power within her that has a red hue and she has to learn to control it. This could lead to her having a different fighting style and new relationships with her teammates as they adjust to this new Ruby.
There are countless fanfic writers out there creating content for RWBY, and the 'rwby ruby becomes red fanfic' could be the work of an amateur or a more well - known fanfic author within the community. It's possible to search for it on fanfic platforms, but even then, the author might not be easily identifiable if they use a pseudonym or if the fanfic is not widely known outside of a small group.
I'm not entirely sure as there could be many different interpretations in a fanfic. It might be about Ruby in the RWBY universe undergoing some sort of transformation that turns her red. Maybe it's related to a new power she acquires that has a red - themed manifestation, or it could be a symbolic change within the story's plot.
Well, her sister Yang would definitely be one of the main characters. Yang would be very protective of Ruby and would try to help her in any way she could. Weiss would also be important. She might use her intelligence and Dust - related skills to assist Ruby. And Blake, with her stealth and combat skills, could be crucial in protecting Ruby and guiding her through difficult situations.
In this fanfiction, Rock Lee could be involved. He would be cheering Sakura on wholeheartedly, and his positive energy might inspire the ANBU members under Sakura's command. Shikamaru, with his strategic mind, could be either an ally or a reluctant supporter. He might question some of Sakura's decisions from a tactical perspective. Additionally, Tsunade could be a background character, her influence on Sakura still lingering, and she could be a source of advice for Sakura when she faces difficult situations as the ANBU commander.
One character could be Nora. Nora is energetic and fun - loving, just like Ruby in some ways. Their combined energy could make for a very lively threesome scenario in fanfiction. Ren might also be a candidate. Ren's calm and collected nature would contrast well with Ruby's more exuberant personality. Together with another character, perhaps Weiss, they could form an interesting threesome. Also, Emerald could be in a threesome with Ruby. Emerald has her own motives and a somewhat complex personality. Her interactions with Ruby, especially in a threesome situation, could add a lot of depth to the fanfiction.
In some cases, new original characters might be introduced. These could be other hunters or huntresses who have a connection to the source of Ruby's darkness. They could either be helping Ruby or be part of the problem. Maybe they are also victims of the same dark power that is corrupting Ruby and they both have to find a way out together.