It could revolve around Cardin's discovery of his Faunus heritage. Perhaps he starts to have strange abilities or physical changes related to being a Faunus, and he has to figure out how to control them while also facing the potential prejudice from his peers, like Weiss who has shown some bias towards Faunus in the original series.
The fanfiction might focus on Cardin's journey as a Faunus in the context of the RWBY universe's power struggles. He could be involved in the fight for Faunus rights, either reluctantly at first or with great enthusiasm. His character could be developed to show how his new identity as a Faunus shapes his views on the world and his role in it. He might form alliances with other Faunus characters and together they could strive for a more inclusive world in the RWBY setting.
Maybe it could be about Cardin trying to hide his Faunus identity at first. He might struggle with the discrimination that Faunus face in the RWBY world while also dealing with his own personal growth and relationships within the team or at school.
Blake would be a likely main character. As a Faunus herself, she could play a crucial role in guiding Cardin through his new identity. She could share her own experiences of discrimination and help him understand the importance of the Faunus cause. Maybe they could work together to expose some anti - Faunus groups operating within the school or the city.
Well, it could be about Ruby struggling to hide her true nature as a Grimm Faunus while still being a Huntress. Maybe she has to deal with the prejudice from others who fear Grimm Faunus.
One possible plot could be that Pyrrha, as a fox Faunus, faces more discrimination than in the original story. She has to prove herself not only as a strong fighter but also as a Faunus in a world that is often unfair to her kind. Maybe she joins a Faunus - rights movement secretly while still being part of Team JNPR at Beacon Academy.
A plot could be that Weiss meets a Faunus with a special power that she's never seen before. They start off on the wrong foot, but as they are forced to team up against a common enemy, like a new type of Grimm. As they fight side by side, Weiss realizes that the Faunus is not what she expected and they develop a mutual respect for each other.
Velvet could be a potential member. She's kind - hearted and might be attracted to Cardin's more confident side. Another could be Pyrrha. She's always looking for new relationships and experiences, and Cardin's unique personality could draw her in. And Coco could also be in the harem. She's bold and might see Cardin as an interesting challenge.
One plot idea could be Cardin trying to balance his relationships within the harem. For example, he might have to deal with the different personalities and needs of each member. Another could be the harem facing a common enemy together, which would strengthen their bonds. Maybe there could be a plot where a new character enters the harem and causes some jealousy and drama among the existing members.
One common theme is redemption. Many fanfictions focus on Cardin realizing his wrongdoings and trying to become a better person. Another theme is friendship. Some stories show Cardin forming unexpected friendships, like with members of Team RWBY.
The plot could involve the relationship between Adam and the Faunus Reader in the context of the RWBY universe. Maybe they meet during a Faunus rights protest. Adam, being a controversial figure, might initially see the Reader as a tool for his own radical ideas. However, as the story progresses, they could develop a more complex relationship, with the Reader trying to steer Adam towards a more peaceful path of fighting for Faunus rights.
One theme could be acceptance. Weiss, coming from a more traditional and perhaps elitist background, has to learn to accept Ruby as a Faunus. Ruby, on the other hand, has to accept that Weiss may not immediately understand her situation but is trying. Another theme could be friendship. Despite their differences, they form a strong bond through shared experiences at Beacon Academy.
Well, many fanfictions about Cardin Winchester in RWBY have the theme of identity. Cardin is constantly trying to define himself, whether it's as a huntsman or just as a person in general. Another common theme is conflict. It could be internal conflict within Cardin himself, like his moral dilemmas, or external conflict with other characters or Grimm. And loyalty is also a theme. Fanfictions might explore Cardin's loyalty to his team, his school, or his own ideals.