Often, there's a theme of adaptation. Naruto has to adapt to the new and strange world of RWBY, with its different threats and cultures. Pyrrha might also have to adapt to Naruto's presence and his rather unorthodox fighting style. This can lead to some comical moments as well as intense character development within the fanfiction.
Another theme is the idea of friendship across different universes. Naruto, coming from his own world, and Pyrrha from RWBY's world, can form bonds. They might start off as strangers but then learn to trust and rely on each other. For example, Pyrrha could help Naruto understand the rules and social norms of Remnant, while Naruto could offer his own unique perspective on combat and loyalty. It often makes for a heartwarming story.
One common theme is her heroism. Many fanfictions explore how Pyrrha was always ready to sacrifice herself for the greater good. Another theme is her relationships, like her friendship with Jaune or her mentorship with the other characters. Loss is also a big theme, as her death was a significant event in RWBY, and fanfictions often deal with how the other characters cope with it.
The theme of power also comes up. Sometimes her resurrection is related to her unlocking a new level of power. Maybe she was on the verge of a great power discovery when she died, and coming back allows her to fully embrace it. This power could be something unique to her character or related to the overall power system in RWBY.
One common theme is the exploration of forbidden love. Since RWBY is set in a world with its own social norms, a Pyrrha Yuri relationship often goes against the expected. Another theme is self - discovery. Pyrrha might discover a new side of herself through her relationship with another female character.
One common theme is the clash of cultures. Naruto comes from a ninja world with its own set of values and traditions, while Pyrrha is from a different kind of combat - oriented world. Their interactions often explore how these two different cultures can co - exist or conflict.
One common theme is Pyrrha's courage in the face of the Grimm. Another could be her growth as a fighter against them. Also, the idea of sacrifice in protecting others from the Grimm is often explored.
One common theme is friendship. Given their relationship within the RWBY universe, fanfictions often explore how their friendship could develop into something deeper. Another theme is adventure. They are both part of a team in RWBY, so stories might involve them going on adventures together and growing closer during those experiences.
Another theme is the idea of friendship and teamwork. Since both Naruto and RWBY are stories that highly value these aspects, crossovers often focus on how the characters from both universes come together to form new teams and overcome challenges. In many fanfictions, fem Naruto will team up with Ruby or other RWBY characters and they'll learn to trust and rely on each other.
One common theme is the struggle with her new identity. As a vampire, Pyrrha has to deal with changes in her nature, like the urge for blood. Another theme is her relationship with the other RWBY characters. Some fanfictions show how they react to her new state, whether it's fear or acceptance.
One common theme could be the reactions of the other characters. For example, how her teammates in RWBY would support her during this time. Another theme might be the challenges she faces while being pregnant in a world full of danger like in RWBY.
A common theme is the clash of different power systems. For example, when RWBY crosses over with Naruto, the semblances of RWBY characters and the chakra - based powers in Naruto create interesting dynamics. Another theme is cultural exchange. In a RWBY x Harry Potter crossover, the RWBY characters are exposed to the magical culture of the wizarding world. And adaptation to new environments is also a theme, like when RWBY characters enter the world of Attack on Titan and have to adapt to the constant threat of Titans.