I'm not entirely sure if it's a popular genre. Fanfiction can cover a vast range of themes, and while there may be some works with such themes, it might not be mainstream. The Black Clover fanfiction community has a lot of different types of stories, from adventure and friendship to power - up scenarios.
One ethical concern is that it might objectify characters in an inappropriate way. Fanfiction should respect the original characters to some extent, and this kind of theme could cross a line.
They could be in a situation where they are accidentally transported to a different dimension. In this new world, they have to rely on each other's skills and the magic they possess. Noelle's water - based magic and Vanessa's thread magic could combine in unexpected ways to help them survive and find a way back home.
One possible fanfic could be about Noelle and Vanessa going on a magical adventure together. They might discover a new spell or a hidden part of the Clover Kingdom. Maybe they have to work together to defeat a powerful enemy that neither could face alone.
Definitely not. Fanfic should be a creative way to expand on a story's world, characters, and themes in a positive and respectful way. Sexual fanfic related to 'Black Clover' goes against the spirit of the original work and can be considered unethical.
A popular 'Black Clover Noelle Fanfic' is 'Noelle's New Allies'. It shows Noelle forming unexpected alliances within the Clover Kingdom. The interactions between her and the new characters are well - written. As for finding more, you can check out fanfic platforms like Archive of Our Own. There are often many hidden gems among the numerous fanfics available there.
One possible fanfic could be about Noelle and Vanessa training together. They start off as just comrades in the Black Bulls, but as they train, they discover they have a lot in common. They both have their own insecurities and strengths. Vanessa might teach Noelle some of her more unorthodox magic techniques, and Noelle could show Vanessa her determination to improve. This could lead to a deeper bond between them as they grow to respect and admire each other more.
A fanfic could also focus on how Noelle and Vanessa support each other emotionally. When Noelle has a setback in her training, feeling like she'll never be as good as some of the other mages, Vanessa is there to comfort her. Vanessa tells Noelle about all the times she herself faced doubts but overcame them. In return, when Vanessa has a bad day, Noelle uses her calm and steady presence to cheer her up. Their relationship grows as they become each other's pillars of support within the Black Bulls.
One common theme is the struggle against fate. In both Black Clover and Fate, characters often have to fight against pre - determined destinies. Another is the power of magic or special abilities. Since Black Clover has a rich magic system and Fate has its own powers, these are often combined in fanfics. Also, friendship and camaraderie are common themes as characters in both universes rely on their friends to face challenges.