Power exploration is also a big theme. Fans like to see how the strong powers in Naruto, like Sharingan or Rasengan, would fare against the magic and combat abilities in FFXV. Some fanfictions have epic battles where Naruto characters use their jutsu against the daemons or other threats in FFXV's world. And sometimes, the characters from both sides learn new ways to use their powers from each other.
Power and identity can also be a theme. The FFXV characters might question their own power levels when faced with new and powerful foes from the crossover world. And they might also struggle with their identity as they interact with characters who have different values. For instance, in a crossover with a dystopian - themed world, the FFXV characters' ideas of royalty and loyalty could be challenged.
One common theme could be the love between the main characters in Final Fantasy XV. It might explore their relationships in more depth than the original game. Another theme could be unrequited love, where one character has feelings for another but it's not reciprocated. Also, love that overcomes obstacles, like the challenges they face in the game world.
One common theme is friendship. Often, the male reader character forms deep friendships with the game's main characters. For example, in many stories, he becomes like a brother to Noctis and the gang.
One common theme is changing the past to avoid future disasters. For example, characters might try to stop the fall of Insomnia before it happens. Another theme is exploring different timelines and how they differ from the main storyline. This can lead to interesting encounters with alternate versions of characters.
There's also 'Naruto and the Chocobros'. This fanfiction focuses on how Naruto interacts with the main characters of FFXV, like Noctis and his friends. It has some really interesting scenes where Naruto shows them his ninja techniques and they in turn teach him about the magic and technology in their world. It's a fun read with a lot of character interactions.
One common theme is character relationships. For example, exploring the deepening friendship between Naruto and Sasuke, or Naruto's romantic relationships with characters like Hinata. Another theme is the expansion of the ninja world. Writers might create new villages, new ninja clans, or new jutsu. Also, the idea of alternate universes is popular, where the events in the original 'Naruto' series take a different turn.
One common theme is alternate universes. Writers often like to create scenarios where Naruto and his friends are in a different world altogether, like a modern - day setting or a fantasy world other than the ninja world. This allows for a fresh take on the characters.
Character relationships are also a big theme. When characters from FFXV cross over into another universe, new friendships or rivalries are formed. Such as when Noctis meets a character from a different game and they have to learn to trust each other or compete in some way. This can lead to a lot of interesting character development and emotional drama.
One common theme is the passing of the torch. Older Naruto is often shown mentoring the younger generation, like how Kakashi mentored him. Another theme is dealing with the scars of past battles, both physical and mental.
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.