A sense of destiny or fate is also a common theme. It's like the werewolf and the OC are meant to be together despite all the odds. This can be shown through prophecies or just a strong, unexplainable connection between them. The idea that their love can overcome all differences and challenges is also quite prevalent in these types of fanfictions.
The theme of transformation can also be seen. Sometimes the OC might get involved in a situation where they are turned into a werewolf or have to deal with the werewolf's transformation. It adds a lot of drama and tension to the story. Also, loyalty and betrayal are often explored. The werewolf might have to choose between loyalty to his pack and his love for the OC, or there could be betrayal within the pack that affects the relationship with the OC.
One common theme is identity. The werewolf OC often struggles with their dual nature, being part werewolf and part something else in the RWBY universe. Another theme is acceptance. They have to find a way to be accepted by the RWBY characters or at least find their own place. And there's also the theme of power. How their werewolf powers interact with the existing powers in RWBY, like semblances.
One common theme is the struggle with identity. The werewolf OC often has to grapple with being different from the other wizards and witches. They are not fully human during the full moon, and this can make them feel isolated. Another theme is acceptance. They strive to be accepted by their peers and the wizarding society at large. For example, in many fanfictions, the OC has to prove that they are not a danger despite their condition.
Another theme is loyalty. As their relationship develops, they show loyalty to each other, whether it's facing external enemies or dealing with internal pack politics. For example, in many stories, the werewolf will protect the male OC at all costs.
A prevalent theme is also loyalty. The werewolf oc has to decide where their loyalty lies - with their own kind, with the Hellsing organization, or with some other group. This theme is explored through various plot twists and character interactions. For instance, they may be torn between their werewolf instincts and the loyalty they feel towards the humans in Hellsing.
One common theme is acceptance. The oc often has to deal with the fact that their father is a werewolf and the prejudice that comes with it. They also have to accept themselves in relation to their father's condition.
A frequent theme is the struggle against one's nature. The werewolf male OC may have to fight his inner beast, especially when it comes to things like violence and aggression. Family loyalty is also common. The OC might be part of a werewolf family or pack and has to defend it. Additionally, there's the theme of the outsider. Some male OCs are different from the rest of the pack, and the story is about them finding acceptance.
One common theme is acceptance. The OCs in the werewolf pack often struggle to be accepted by the wizarding world. Another theme is loyalty, within the pack itself. They have to be loyal to each other to survive.
Transformation is a big theme. How the character changes physically and emotionally when they turn into a werewolf is often explored. Also, the concept of the moon is very common. Since werewolves are often associated with the moon, many fanfictions use the moon as a symbol for power, change, or even as a trigger for the werewolf's transformation. There's also the theme of the werewolf's inner struggle, like trying to control their animal instincts in a human world.
One common theme is the intense attraction and mating instinct. During werewolf heat, the characters experience a strong pull towards each other, often leading to romantic or sexual relationships. Another theme is the struggle for power within the pack, especially when it comes to choosing mates during the heat.
Another theme is the discovery of new powers. In many werewolf gamer fanfictions, the werewolf character may find that their werewolf abilities give them an unexpected advantage in the game world, such as enhanced senses for finding hidden items or super strength for combat scenarios. This discovery of new powers and how they are used in the game is a popular theme.