Ruby's friends like Weiss, Blake, and Yang are likely to be important supporting characters. They would be the ones trying to save Ruby from Cinder's corruption. Ozpin could also be a supporting character, perhaps guiding Ruby's friends in their attempts to rescue her. Qrow might be involved too, using his experience and skills to figure out a way to reverse the corruption.
Well, Pyrrha's spirit could potentially be a supporting character in a way. Since she was a significant figure in RWBY lore, her memory or some kind of spiritual presence could inspire Ruby's friends to fight against the corruption. Penny might also play a role, if she's still alive in the fanfic's context. Her innocence and loyalty could be a contrast to Ruby's corrupted state. And then there are the members of Team JNPR, who would surely side with Ruby's friends in the battle against Cinder and the corruption of Ruby.
Well, in many such fanfics, a major plot point could be Ruby's internal struggle. At first, she might resist Cinder's corrupting influence. Another plot point could be how Cinder manipulates Ruby's relationships. For example, turning her friends against her or making her feel isolated. And often, there's a climax where Ruby is on the verge of fully being corrupted, and it's a race against time for her friends to save her before she loses herself completely.
Obviously, Ruby and Cinder are the main characters. Ruby is known for her optimism and combat skills with her scythe. Cinder, on the other hand, is a more complex and often villainous character with her own set of powers.
Yes, there might be. The RWBY fandom is quite large and creative, so it's possible that someone has written a fanfic with such a plot. You can check fanfic websites like Archive of Our Own or Fanfiction.net to see if there are any stories like that.
Redemption is also a popular theme. Since Cinder is a villain, many fanfics like to see if she can be redeemed, often with Ruby playing a key role in that process. For example, Ruby's kind nature might inspire Cinder to change.
If in fanfiction Cinder is Ruby, it would be a total game - changer. Ruby is the symbol of hope in RWBY, and Cinder is a symbol of destruction. So, this switch would create a really interesting narrative. The story could explore how Cinder, in Ruby's body or identity, would deal with Ruby's responsibilities. Would she try to uphold Ruby's values? Or would she slowly corrupt them? And how would the other characters react? They might initially trust her because she looks like Ruby, but as they start to notice the differences in her behavior, it would lead to a lot of conflict and drama.
There are so many RWBY fanfics out there that it can be a bit of a hunt to find one with this specific detail. You could also check out RWBY fan communities on Reddit or Tumblr. Sometimes fans will recommend great fanfics in those groups. Maybe post a request asking for a fanfic where Cinder calls Ruby 'Red'. That way, other fans who know of such a fic can point you in the right direction.
One common theme is redemption. Cinder is often portrayed as a character who might find redemption through her interactions with Ruby. Another theme is the power of understanding, as they come from very different sides in the RWBY world.
The main characters would surely be Cinder, who is in a position of power in this fanfic. And then there are Ruby Rose, the fearless leader of Team RWBY, Weiss Schnee, the heiress with her own set of skills, Blake Belladonna, the former White Fang member, and Yang Xiao Long, the strong fighter. They are the ones who will be at the center of the story as they face the situation of being enslaved by Cinder.
One great RWBY Ruby and Cinder fanfiction is 'The Unlikely Alliance'. It explores a scenario where Ruby and Cinder are forced to work together against a common enemy. The story does a great job of developing their characters in this new context.
In the RWBY universe, colors are very important. Ruby is associated with red. Cinder calling her 'Red' might be a power play. It could imply that Cinder sees Ruby not as an individual with her own agency and skills, but simply as a representative of the color red, which in RWBY has certain connotations. Maybe Cinder is trying to undermine Ruby's identity within the context of the color - themed world they live in. It could also be a foreshadowing device in the fanfic, hinting at future conflicts or interactions between the two characters based on this simplistic view of Ruby.