One common theme is friendship. Ruby and Weiss start off with a somewhat rocky relationship, so fanfictions often explore how they gradually become better friends. Another theme is their growth as Huntresses. They both have different strengths and weaknesses, and stories may focus on how they help each other improve.
Teamwork is a big theme. Since they are part of the same team in the RWBY universe, fanfictions can show how they coordinate in battles, make strategies together, and rely on each other's skills. Also, there are fanfictions about them facing challenges outside of combat, like dealing with difficult schoolwork or social situations at their academy, which further deepens their bond.
There are several great themes for Ruby and Weiss fanfiction. For example, their mentorship. Ruby is a young leader, and Weiss has more experience in some ways, so fanfiction can explore how they learn from each other in that regard. Additionally, their adventures outside of the main RWBY plot can be a theme. They could go on a quest together to find a lost relic or something, and this would make for an exciting story. Also, the exploration of their individual dreams and how they support each other in achieving those dreams is a common theme.
A theme that sometimes shows up is the idea of redemption or self - discovery. Maybe Ruby has some past mistakes or Weiss has some insecurities she needs to overcome. Through their relationship, they are able to find themselves and become better versions of themselves. This can add a lot of depth to the fanfiction and make the characters more relatable to the readers.
Power dynamics also play a big role. Weiss, as a vampire, may have certain powers and abilities that Ruby doesn't. This can lead to situations where Ruby is in a more vulnerable position, or where Weiss has to protect Ruby from other threats. And also, the idea of Ruby trying to understand and accept Weiss' vampiric nature is often explored. For example, how Ruby deals with Weiss' need for blood or her different lifestyle. This exploration of acceptance and difference is a very common theme in such fanfictions.
A common theme is friendship development. Since they start as just teammates, a lot of fanfictions explore how they become closer friends. For example, they might share secrets or have deep conversations that bring them closer.
One popular theme is the exploration of their different backgrounds. Ruby being a Wolf Faunus and Weiss from a more privileged family can lead to interesting cultural clashes and mutual understandings. Another theme could be adventure. They might go on quests together, relying on each other's skills. Ruby's Faunus abilities like enhanced senses could complement Weiss's combat and magic skills. Also, friendship and the development of a deeper bond is a common theme. As they face challenges, their relationship grows from just being teammates to something much more profound.
Love and its discovery is also a frequent theme. As they spend more time together, the fanfics often explore how they gradually realize their feelings for one another. It could be through small moments like sharing a meal or a big event like saving each other's lives, which then leads to a deeper emotional connection between Ruby and Weiss.
One possible theme could be the exploration of their complex relationship. It might focus on how they overcome their differences and grow closer. Another theme could be their shared experiences in the magical world, like fighting together against a common enemy.
One popular theme is their journey of growth together. They both develop as characters, and fanfiction often explores how they support each other through different challenges in the story world. For example, Raphtalia's growth from a timid slave to a strong warrior with Naofumi's guidance is a common aspect.
Love and romance can also be a theme, although not always in a traditional sense. It might be more about the deep emotional connections between them. Some fanfictions might explore a more complex relationship where their feelings for each other are a mix of friendship, admiration and something deeper. For instance, Ruby might look up to Winter as a role model and at the same time have a special bond with Weiss, and these relationships can be explored in different ways in fanfiction.
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.