One common theme is loyalty. The sisters in RWBY are often shown to be extremely loyal to one another, standing by each other through thick and thin. For example, in many fanfictions, they will fight to protect their sister no matter what the cost.
The theme of sacrifice also pops up a lot. Sometimes, a sister might have to sacrifice her own desires or safety for the well - being of her sister. This could be in the form of giving up a chance at a personal goal to help her sister achieve something, or putting herself in harm's way to protect her sister.
Another theme is growth. The sisters grow both individually and as a unit. They learn from their experiences together and become stronger. In some fanfictions, you might see a younger sister becoming more confident because of the support of her older sister.
One common theme is loyalty. The overprotective sister is often extremely loyal to her sibling, willing to go to great lengths to keep them safe. For example, she might put herself in danger without hesitation.
One common theme is sisterly bond. The fanfictions usually explore the deep connection between the twin sisters, how they support each other through tough times. Another theme is self - discovery. The sisters often embark on a journey to find out who they really are.
Love and friendship are also common themes. The relationship between the twin sisters can be seen as a deep friendship as well as a family bond. And in some stories, they might both fall in love, but in different ways, which could lead to some interesting plot twists. There could also be a theme of self - discovery, where the presence of the twin sister helps Blake discover new aspects of herself she didn't know before.
The idea of good vs. evil is prevalent. RWBY has the fight against Grimm and various villains, and DMC has battles against demons. In fanfictions, these two concepts of evil often merge. For instance, a new type of demon - Grimm hybrid might be created, and the combined characters from both franchises have to fight it. And there's also the theme of friendship and teamwork, as characters from different backgrounds learn to work together to face the challenges.
One common theme is power - up. The characters often gain new or enhanced powers, like Ruby getting super - speed in addition to her scythe skills. Another theme is the fight against greater threats. Since superheroes are known for taking on big bads, in RWBY fanfiction, they might face stronger Grimm or new types of villains.
Love and friendship are common themes. Many fanfictions explore how Ruby and Blake's relationship evolves from friendship to something more. They often face challenges together that strengthen their bond.
In RWBY vampire fanfiction, a frequently seen theme is the clash of cultures. The RWBY world has its own set of values, and vampires bring in their own set of rules and behaviors. This can lead to interesting interactions and conflicts. Another theme is the search for a cure. If a character is turned into a vampire, they or their friends may be on a quest to find a way to reverse the transformation. And the theme of outcasts also exists. Vampires are often seen as outcasts in the RWBY world, and this can be explored in terms of how they deal with being shunned by society and how they form their own communities or try to integrate into the existing ones.
One common theme is the struggle against darkness. Both RWBY and Berserk have elements of a dark world, so in fanfiction, characters often face overwhelming evil forces. For example, in many fics, RWBY characters might encounter the same kind of demonic entities as in Berserk. Another theme is the search for identity. Characters from both universes might question who they are in a crossover situation.
One common theme is redemption. Many fanfictions explore the possibility of Cinder finding a way to atone for her actions. Another is power - seeking. Since Cinder is often depicted as power - hungry, fanfictions may expand on her pursuit of more power. And there's also the theme of identity, as she tries to figure out who she really is beneath all the villainy.
Survival is also a prevalent theme. Facing the Nuckelavee, the RWBY characters are pushed to their limits to survive. This can lead to some intense and exciting plotlines. Additionally, the theme of discovery might be present. As they fight the Nuckelavee, they could discover new abilities or secrets about the RWBY world.