Another popular theme is alternate relationships. The multiverse allows for different pairings between characters that might not be possible in the original story. It gives a fresh perspective on the characters' personalities and how they interact with others.
In Highschool DxD multiverse fanfiction, character development can take on new dimensions. New relationships can be formed between characters from different universes. This can lead to some really creative storylines. For instance, a character from a more peaceful universe might have to team up with a battle - hardened character from another universe, and they learn from each other's experiences.
A common theme is power - up. Rias may gain new powers or improve her existing ones. This could be related to her devil heritage or through some special training or encounter.
You can try fanfiction websites like FanFiction.net or Archive of Our Own (AO3). They usually have a wide variety of fanfictions, including those related to Highschool DxD and the multiverse concept.
Well, in some fanfictions, they could travel to a multiverse where the rules of the Highschool DxD world are completely different. For example, the devils, angels, and fallen angels might have different hierarchies or abilities. This can lead to really exciting plot twists as the characters have to adapt to these new environments and find a way to get back to their own universe.
One popular theme is the exploration of relationships between female characters. In Yuri Highschool DxD fanfiction, writers often focus on the emotional bonds and interactions between the female characters. Another theme could be the development of unique powers or abilities within the Yuri context of the story. For example, a character might discover a new power that is related to her relationships or her own self - discovery. Also, the theme of friendship and loyalty among the female characters is quite common. They support each other through various challenges in the high school setting, which is full of supernatural elements in the Highschool DxD universe.
Power development is also a common theme. Gasper has his own set of powers, and fanfiction may delve into how he hones them. Maybe he discovers new ways to use his vampire abilities, or he trains with other characters to become stronger and more in control of his powers.
One popular theme is power - ups. In both Highschool DxD and Campione, power is a significant aspect. Fanfictions often explore characters getting new and stronger powers, and how they use them. For example, in Highschool DxD, a fanfic might focus on Issei getting a new form of his Boosted Gear.
One popular theme is the relationship development between the female characters. It could be about how they gradually fall in love, overcome obstacles in their relationship, like dealing with the opinions of other characters in the Highschool DxD world.
One common theme could be the exploration of unique power dynamics. Since Highschool DxD has a complex system of powers, in futanari fanfiction, it might show how these characters with different genders and powers interact. For example, a futanari character might have a special power that affects the relationships and battles within the story.
For Naruto fanfiction, redemption arcs for villains can be a popular theme. Writers might explore how characters like Sasuke could have a different path to redemption. Another theme is time - travel, where characters go back in time to change events. In Highschool DxD fanfiction, exploring the backstories of the devil characters more deeply is a theme. Also, crossovers between Highschool DxD and other anime are becoming more popular, like a crossover with Bleach or One Piece.