One common theme is friendship and alliances. Naruto is known for making friends and in the DxD fanfiction, he might form new alliances with characters from DxD. Also, the theme of self - discovery. As Naruto enters a new world, he has to learn about himself in this different context. For example, how his ninja way might change or stay the same. And of course, there's often the theme of combat. Since both series have a lot of action, seeing Naruto fight in the DxD world against different opponents is a big draw for these fanfictions.
Perhaps a crossover where the shinobi world and the Highschool DxD world are somehow connected. Maybe there's a portal that leads from Konoha to the school. This would allow for all kinds of interactions between the characters from both universes, like Sasuke getting involved in the power struggles in the Highschool DxD world.
The clash of different power systems. In Naruto, there's chakra and various jutsu, while in Highschool DxD, there are sacred gears and demonic powers. Seeing how these interact, like if a devil tries to absorb chakra or a shinobi uses a sacred gear, would be exciting.
Yes, it can be quite popular. Many fans of both Naruto and High School DxD are drawn to the idea of combining the two universes. It allows for unique crossovers, like seeing Naruto's ninja skills in the DxD world filled with devils, angels, and other supernatural beings.
Perhaps it's a shinobi who has retired after a long and eventful career. He could be someone who has seen the darker side of the shinobi world and wants to make sure Naruto doesn't go down the wrong path. He might have been a wandering shinobi who finally settles down with Naruto. For example, he could be a shinobi from a different village who has a unique set of skills to teach Naruto.
One interesting 'gamer system dxd fanfiction' is 'The Gamer in High School DxD'. It adds a unique gaming - like system to the High School DxD universe which makes the story more engaging.
Another unique aspect is the way it can change character relationships. With the gamer system, a character's power level can increase rapidly, which can either intimidate or attract other characters. This can create new alliances or rivalries. For example, if a previously weak character suddenly becomes powerful due to the gamer system, it might change how other characters in the DxD world interact with them. It also often has a more goal - oriented narrative because of the quest - based nature of the gamer system, which gives the story a clear direction and keeps the readers engaged.
The Naruto system in DxD fanfiction typically works by integrating elements from the Naruto series into the DxD setting. It could mean that characters get to use jutsu. This can be a game - changer in the DxD world where power is mainly defined by devil pieces and sacred gears. For instance, a character with the Naruto system could use shadow clone jutsu to create multiple copies of themselves during a fight. This not only gives them an advantage in combat but also changes the strategic aspect of battles in the DxD fanfiction. It also might introduce new character classes or power levels based on the Naruto system's hierarchy, such as genin, chunin, and jonin equivalents in the DxD world.
The system can change the power dynamics by allowing the reborn character to level up faster than normal characters in the DxD world. This rapid growth in power means they can quickly become a force to be reckoned with, disrupting the existing balance between the different factions like devils, angels, and fallen angels.
One of the best shinobi novels could be 'Naruto'. It has a richly detailed world of ninjas, with complex characters like Naruto Uzumaki. The story follows his journey from an outcast in his village to a hero, filled with action, friendship, and the exploration of ninja values.