Well, a frequent theme is the clash of cultures. The shinobi culture from Naruto and the more post - apocalyptic, tribal culture in The 100. Also, friendship and loyalty are common. Characters from both universes have to learn to trust and work with each other, and this forms the basis of many fanfictions.
One common theme is the exploration of their self - discovery. Since they are the same person in a sense, they can see different aspects of themselves. For example, one Naruto might be more confident while the other is more reserved, and they learn from each other.
The theme of sacrifice also shows up a lot. Both Naruto and Sasuke are characters who are willing to sacrifice for the other in the original story, and this is often explored further in fanfiction. Writers might create scenarios where one has to make a big sacrifice for the other, which then tests and deepens their relationship.
Well, in these fanfictions, a frequent theme is the power of connection. The connection between the two Narutos is often depicted as something that gives them strength. Another common theme is the struggle against society's norms. Since it's a yaoi relationship, they may face opposition from the ninja world, which leads to themes of fighting for their relationship. Also, the theme of growth is present. They grow both as individuals and as a couple throughout the story.
Well, a lot of naruto x robin fanfiction has the theme of discovery. Since they are from different universes, they discover new things about each other's worlds. Also, power - how their combined powers can be used to overcome obstacles. And sometimes, there's a bit of a romantic undertone, not always in a traditional sense but in terms of a strong bond between them.
One common theme is the clash of different power systems. Naruto has his chakra and jutsu, while Buffy has her slayer strength and combat skills. Writers often explore how these powers interact when the two characters meet. Another theme could be the idea of two heroes from different worlds coming together to fight a greater evil that might be a threat to both their universes.
One common theme is friendship. Since Naruto is all about friendship in his own series and Nami values her crewmates (which is a form of friendship), it's often explored in the fanfiction. Another is adventure, as both characters are from adventure - based anime.
One common theme is friendship. Naruto is known for his ability to befriend others, and in 'naruto x kurai fanfiction', their friendship is often explored deeply. Another theme is growth. Both characters might grow in terms of their ninja skills and personal development.
One common theme is redemption. Konan, with her past in the Akatsuki, often finds redemption through her relationship with Naruto. Another theme is the power of love. Their love can overcome differences in their backgrounds and beliefs. For example, Naruto's belief in peace and Konan's past with a more violent organization.
One common theme is the clash of their different powers. Naruto has his chakra - based powers and Charmcaster has her magic. Writers often explore how these two types of powers interact when they are together. Another theme could be the cultural differences. Naruto is from a ninja - centered culture, while Charmcaster is from a more magical realm.
One common theme is friendship. Despite their differences, Naruto and Isobu develop a strong friendship in many fanfictions. Another theme is power. How they combine their powers or how Naruto helps Isobu control his power better.