The theme of destiny also appears frequently. Many fanfictions depict Issei and Amaterasu as being fated to meet and have an impact on each other's lives. Their destinies are intertwined, and they are often on a path to fulfill some greater purpose together, like saving their world from a great evil or restoring balance to a disrupted universe.
A common theme is power. How Issei gains power from Amaterasu or how they combine their powers. For example, in many fanfictions, Issei's combat abilities are enhanced by Amaterasu's divine energy.
One common theme could be the clash or harmony of different powers. Since Issei might have his own set of powers and Amaterasu is a significant figure in mythology with her own powers, their interaction in terms of power dynamics can be a theme. For example, how they combine their powers to face a common enemy.
One common theme is the exploration of their powers. Percy has his demigod abilities and Amaterasu has her divine powers, so stories often show how these powers work together or clash. Another theme is friendship or partnership, as they come from different mythologies but can form an alliance.
A common theme is the clash of different mythologies. When Amaterasu crosses over into another world or story, her own Japanese mythological background often clashes or melds with the new one. For example, in crossovers with Western mythologies, there are differences in concepts of divinity and power.
One common theme could be the exploration of their relationship in different mythological settings. Maybe how they interact with other deities in their world.
One common theme is power adaptation. Naruto has to adapt his ninja powers in the DxD world which has its own set of rules. Amaterasu, being a powerful ability, often becomes a focus in terms of how it can be used or controlled in this new world.
Well, a frequent theme is the discovery of each other. Naruto might stumble upon Amaterasu in some way, and they start to understand one another. Also, the theme of forbidden love often pops up. Given their different natures and the fact that such a relationship might not be accepted in their respective worlds, it can add an element of drama to the story. Additionally, there could be themes related to sacrifice, like one of them having to give up something for the sake of the relationship.
One common theme is the clash of different powers. Naruto has his own set of abilities, and Amaterasu has her significance. Writers often explore how their powers interact and complement each other in a romantic relationship. Another theme could be the discovery of new aspects of the Naruto universe. Since Amaterasu is not a character directly involved in Naruto's main story in the original series, it opens up new areas to explore.
One way to find good 'issei x amaterasu fanfiction' is to ask in relevant fan communities or forums. People who are into the same fandom might be able to point you towards some great works. They may have their own favorites based on the plot, the writing style, or how well the characters are developed in the fanfiction.
Many fanfictions focus on Issei's role within the devil society. How he rises in rank, earns respect, and changes the way things are done. There are also themes related to loyalty and friendship. His relationships with his friends and comrades are often explored, showing how they support each other in the face of various challenges in the dangerous world of 'High School DxD'.
Well, the theme of sacrifice is quite prevalent. Sometimes either Issei or Rias has to sacrifice something for the other or for the greater good. Another common theme is identity. Issei, as a human - turned - supernatural being, and Rias, as a devil, both struggle with their identities at times. Their relationship helps them to better understand themselves. And the theme of destiny often comes up, as if they are fated to be together and face all these challenges as a couple.