Another common theme is the exploration of different worlds. When Naruto enters the world of 'Black Clover' or vice versa, fanfictions usually describe the differences in culture, society, and magic/ninja systems. It's fascinating to read about Naruto's reaction to the magic in 'Black Clover' or how the 'Black Clover' characters view Naruto's ninja techniques.
One common theme is power. Since both 'Naruto' and 'Black Clover' have characters with different levels of power, fanfictions often explore how the characters from one universe would compare in terms of power to those in the other. For example, Naruto's chakra control vs. the magic control in 'Black Clover'.
Friendship is also a big theme. In these fanfictions, you can see Naruto making friends with the characters from 'Black Clover' like Asta and Yuno. They go on adventures together, and their different backgrounds and personalities create an interesting dynamic of friendship. This theme is important as it was also a central part of both original series.
Another theme is the power of friendship turning into something more. The strong bonds of friendship in 'Black Clover' can be taken to a romantic level in yaoi fanfiction. For example, two characters who start as comrades gradually realize they have deeper feelings for each other. It often involves a lot of emotional turmoil as they struggle with these new feelings. And there's also the theme of self - discovery. Characters may discover new aspects of themselves, especially their sexual orientation, through their relationships in the fanfiction.
Love and commitment are common themes. Since they are married, the fanfictions often explore how they keep their love alive and their commitment to each other strong.
One common theme is adventure. Writers often send them on missions or quests together. Another is friendship, showing how they bond over shared experiences. And sometimes, there's a mystery element where they have to solve something together.
One common theme is power and growth. Since Nozel is a powerful mage, many fanfictions focus on him getting even stronger or exploring the limits of his magic. Another theme is family. His relationship with his family, especially his sister Nebra and Solid, is often explored in fanfictions.
Friendship is a common theme. Just like in the original series, fanfictions often show characters from Black Clover and Fairy Tail forming strong bonds with each other. They support one another through tough times.
One common theme is empowerment. Since female Asta would be in a male - dominated world like the Clover Kingdom, her journey to prove herself would be a central theme. Another is friendship, just like in the original but with a different flavor. For instance, her friendship with Luck could be explored in new ways, like how they train together.
Often, you'll see themes of growth and self - discovery. Clover and Ralsei might go through different challenges that make them learn more about themselves and each other. Also, there can be a theme of loyalty. In the face of difficulties, they stand by each other, which is a popular plot point in these fanfictions. And sometimes, there are themes related to the magic and mystery of the Deltarune world that they are part of.
One common theme is friendship. Since Asta is known for his positive attitude and ability to make friends, fanfictions often explore his relationship with Nash in terms of friendship, like how they support each other through difficult times in the Black Clover world.
Another theme is identity. The OC is usually an original creation, so exploring who they are in relation to the Witch Queen and the Black Clover world is important. They could be from a different background and have to fit into the Witch Queen's realm. For instance, an OC from a non - magic family might have to find their place among the witches. This exploration of identity adds depth to the story.
One prevalent theme is the exploration of the Black Clover world through the eyes of the OC. As the OC is inserted into the story, they and Asta might go on quests to discover new parts of the kingdom or secrets about magic. Also, the theme of over coming obstacles together is quite common. Since Asta has his own set of challenges being magic - less in a world full of magic, and the OC might have their own personal issues, and they support each other to get through them.