One popular theme is competition. Combining the competitive nature of tennis from Prince of Tennis with the battles in Naruto. Another is friendship, as characters from both series form new bonds.
Well, power - up themes are quite common. For instance, a Naruto character might gain new tennis - related powers that enhance their overall abilities. Also, the theme of exploration is popular, where characters explore the other universe, like a Prince of Tennis character exploring the Hidden Leaf Village in Naruto.
One of the most common themes is rivalry - turned - friendship. Given their status as strong tennis players in the series, many fanfictions start with them being rivals on the court but then develop a deep bond off - court. Another popular theme is mutual growth. Fans like to write about how they help each other improve their tennis skills and also their personal development.
One common theme is self - discovery. The OCs often start out not knowing their full potential in tennis and then through various challenges, they learn more about themselves. For example, they might discover a new type of shot or a new strategy.
Harry Potter and Ryoma Echizen are often paired. Harry's heroic nature and Ryoma's tennis talent make for an interesting combination. They can learn from each other, with Harry learning about discipline in tennis from Ryoma, and Ryoma getting a taste of the magical world from Harry.
One popular type might be those that focus on a character from 'Prince of Tennis' having a unique encounter with Sakura. For example, a story where a tennis prodigy from 'Prince of Tennis' accidentally enters Sakura's world and they have to work together to get him back. Another could be a story where Sakura somehow becomes involved in a tennis tournament in the 'Prince of Tennis' universe, adding a magical touch to the sports event.
Ryoma Echizen is often a popular choice. He's the main character in the original series, so it's natural that many time travel fanfictions would focus on him. Fans like to explore different scenarios with him, like how he would react if he met his past or future self, or how he would use his skills in different time periods.
Another popular theme is the exploration of their powers. Naruto has his chakra - based powers and Harribel has her unique Arrancar abilities. Fanfictions sometimes have them training together or combining their powers in unique ways. Like in one story, they create a new kind of energy blast by merging Naruto's Rasengan with Harribel's Cero.
Team - ups are also a big theme. Writers like to explore how the two very different characters would work together. They might have different fighting styles, with Naruto using his jutsu and Deadpool with his guns and swords, but they find ways to combine their strengths. In some fanfictions, they form an unlikely friendship during their adventures.
One popular theme is power exploration. Writers often explore how Naruto can unlock and control the powers of the tailed beasts. Another theme is the relationship between Naruto and the tailed beasts, especially the Nine - Tails.
A very common theme in Naruto Hanzo fanfiction is his redemption arc. Given his complex history in the Naruto series, many authors like to explore how he could have redeemed himself. Hanzo's interactions with other major Naruto characters like Naruto himself or Jiraiya is also a popular theme. It allows for interesting crossovers and character development. Also, the theme of Hanzo's influence on the political landscape of the ninja world is often explored in fanfictions.
One popular theme is Naruto learning the ways of the Jedi. This includes him training under Jedi masters and trying to master the Force. Another is the clash between Naruto's ninja world values and the Jedi code. It makes for an interesting exploration of different moral and ethical systems.