In these novels, the theme of sacrifice is often present. The beauty might sacrifice her normal life, her comfort, or her safety to be with the beast. And the beast may also sacrifice his pride or his solitary way of life for the beauty. Another common theme is the idea of two different worlds colliding. The beauty usually comes from a more normal, perhaps human world, while the beast is from a world of magic or mystery. Their relationship bridges these two different worlds, which is a recurring theme in this type of romance novels.
One common theme is transformation. Just like in the original story, either the beast - like character transforms physically or both characters transform emotionally. For example, in 'A Court of Thorns and Roses', the main male character has a sort of beast - like nature at first which changes as the story progresses. Another theme is the power of love. Love is often what breaks the curse or overcomes the differences between the beauty and the beast. It's shown in many of these novels as a force that can heal and bring two very different beings together.
One common theme is transformation. The beast often has to transform, either physically or emotionally, through the love of the beauty. For example, in the classic story, the beast turns into a prince at the end.
The themes usually include acceptance. Beauty has to accept the Beast as he is, and the Beast has to accept Beauty's kindness. There's also the theme of sacrifice. Sometimes Beauty sacrifices her own comfort or safety to be with the Beast. And the idea of a magical world is often present. The curse that turns the man into a Beast and the enchanted castle are elements that add to the magical theme.
Love conquering all is a prevalent theme. Despite the differences between the beauty and the beast, their love overcomes social class differences, family feuds, and personal insecurities. In historical settings, these obstacles are often magnified, but the power of love is shown to be strong enough to bridge the gaps.
Redemption is another theme. The beast is usually seen as a character who needs to be redeemed, either from his past actions or his cursed state. Fanfics often play with this idea, showing how the beauty helps in his redemption process.
Love is a very common theme. Just like in the original story, fanfics often center around the growing love between Beauty and the Beast. It shows how love can transcend appearances.
One common theme is inheritance. The baby is often shown to inherit certain traits from both Beauty and the Beast, like Belle's love for books and the Beast's physical strength or connection to the castle's magic. Another theme could be acceptance. Since the Beast was once an outcast, the fanfictions may explore how the baby is accepted in the world around them, whether it's by the villagers or the magical beings in the castle.
Love and redemption are also prevalent. Just like in the original story, the love between the beauty and the beast can be a powerful force for change. In crossovers, this love may be tested in different ways due to the new elements introduced. For instance, if it's crossed over with a post - apocalyptic world, their love has to survive in a harsher environment. And redemption can come in the form of the beast trying to make up for his past actions in a new and unfamiliar context.
Well, there are a few key themes. Firstly, the theme of transformation. The OC may transform in some way, either physically or emotionally, during their time in the castle. Secondly, friendship is a common theme. The OC forms bonds with the characters from the original story, like the servants or the Beast himself. And thirdly, there's the theme of breaking free from expectations. The OC often defies the expectations that others in the story have of them and creates their own path.
The theme of acceptance is also prevalent. Naruto comes from a world where people with different abilities and appearances are accepted (to some extent). In the 'Naruto and Beauty and the Beast' fanfictions, he might help the characters in the Beauty and the Beast world to accept themselves or others more fully. For example, he could encourage the 'Beast' to accept his cursed form while also striving to break the curse, just as Naruto accepted his own status as a jinchuriki and worked towards using that power for good.