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.
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.
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.
A common theme is the exploration of their different personalities. Sasuke is often brooding and focused on his own goals, while Sai is more of an enigma at first. Fanfics may focus on how they come to understand each other better.
One common theme that can be made appropriate is friendship. In 'naruto shippuden', friendship is a huge part of the story. Fanfics can explore how the characters' friendships develop further during the Shippuden era. For example, Naruto's friendship with Sasuke could be explored in more depth, like how they support each other through different challenges even if they have their differences.
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 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.
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 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 frequent theme is the exploration of different cultures. Naruto comes from a ninja - based feudal Japanese - inspired world, and Twilight has a more modern American - inspired setting. So, seeing how the characters interact with these different cultural elements is often explored. Also, themes of friendship and loyalty are carried over from Naruto and get mixed with the complex relationships in Twilight.