One common theme is power exchange. For instance, in a Naruto and Dragon Ball Z crossover, Naruto might gain the ability to use Ki, or a Dragon Ball Z character could learn chakra manipulation. Another theme is cultural clash. When Naruto enters the world of Fairy Tail, there are differences in how the guilds operate compared to the ninja villages in Naruto.
Friendship across universes is a popular theme as well. In a Naruto and Pokemon crossover, Naruto might form bonds with various Pokemon trainers. He could learn about the concept of Pokemon friendship and how it differs from the bonds he has with his comrades in Konoha. This theme of forging new relationships in strange new worlds is really engaging in these crossovers.
Character growth in an unfamiliar setting is also a frequent theme. Imagine Naruto in the world of Attack on Titan. He has to adapt to a world full of Titans and different combat styles. This forces him to grow in new ways, learning about the politics and social structures there. Also, the exploration of different power hierarchies is common. In a Naruto and My Hero Academia crossover, the different ways heroes and ninjas are ranked and respected are compared and contrasted.
The exploration of different worlds is also a common theme. When Naruto crosses over into a new universe, like the world of Fullmetal Alchemist, the fanfic often focuses on how he adapts to the new rules, cultures, and technologies of that world. It's fascinating to see how a ninja from the Hidden Leaf Village copes in a world full of alchemy.
Another theme is the exploration of the Naruto universe from a different angle. Since it's a harem fanfiction, it can show different sides of the characters and their interactions in a non - canon way. For example, how Naruto's new relationships might change his goals or how the female characters interact with each other because of their shared feelings for Naruto.
One common theme is the clash of cultures. Gohan comes from a very different world than Naruto's. So, in fanfiction, we often see how Gohan adjusts to the ninja way of life. Another theme is power - up. Writers like to show Gohan getting even stronger in the Naruto universe, perhaps by combining his Saiyan powers with ninja techniques.
One common theme is the development of their relationship. Writers often explore how they go from being just comrades to having deeper feelings for each other. For example, in many fanfics, there are moments where they start to understand each other on a more personal level during missions or while dealing with village politics.
One common theme is the mentor - mentee relationship. Tsunade, being an experienced ninja and one of the Sannin, often takes Naruto under her wing in fanfictions. She can teach him things like better chakra control or more advanced combat techniques. Another theme is the exploration of their past traumas. Both have faced significant losses in their lives, and fanfictions may delve into how they can heal each other. For example, Naruto can help Tsunade move past the deaths of Dan and Nawaki, while Tsunade can offer Naruto wisdom on dealing with the absence of his parents.
Another common theme is growth. Naruto and Hinata both grow as individuals and as a couple. In many fanfictions, they face challenges that help them become stronger. Like they might face a powerful enemy that forces them to improve their skills while also strengthening their bond.
One common theme is the struggle between duty and love. In the Naruto universe, ninjas have a lot of responsibilities, so characters often have to choose between their duties as shinobi and their romantic feelings.
One common theme is self - discovery. The original characters often have to figure out their place in the Naruto Shippuden world. Another is friendship, as they interact with the known characters. And power - up is also common, like the oc developing a new jutsu or getting stronger in some way.
Romance is, of course, a big theme. Writers usually explore the relationship between the reader and Suigetsu, whether it's a slow - burn romance or a more immediate attraction. Another theme is self - discovery. As the reader character interacts with Suigetsu, they often learn more about themselves and their own abilities in the Naruto world.
A frequent theme is the exploration of the forbidden. In the context of Naruto Shippuden, yaoi relationships involving Kankuro can be seen as going against the norm. So, fanfictions might focus on how he deals with this. There could also be themes related to family reactions. How would his family, like Gaara, react to his relationship? It adds an extra layer of drama. Additionally, the theme of perseverance in love is common. Kankuro and his partner might face numerous obstacles, but they persevere in their relationship, showing the strength of their bond.