Since I'm not familiar with this exact fanfiction, I can only speculate. 'issei is a shinso vampire fanfiction' could potentially tell a story full of mystery and the supernatural. Shinso vampires might have their own set of rules and hierarchies in the fictional world. Issei, being one of them, could be involved in power struggles, or perhaps he's on a quest to discover his true origins as a shinso vampire. It could also be a love story where his vampiric nature complicates his relationship with someone.
The unique elements also lie in the character development. Since Issei and Shinso are not originally vampires in the source material, their transformation into vampires or their journey within the vampire world allows for a lot of growth. They may struggle with their new identities, dealing with the thirst for blood, and the moral implications of being a vampire. This internal conflict and the way they overcome it or succumb to it is what makes these fanfictions interesting. Additionally, the fanfictions often introduce new vampire lore, like unique ways of turning others into vampires or different hierarchies within the vampire community.
You could start by looking on popular fanfiction websites such as Archive of Our Own (AO3) or Fanfiction.net. These platforms have a large collection of fanfictions, and there's a good chance you might find it there.
A great issei shinso vampire fanfiction to check out is 'The Dark Vampire Legacy of Issei Shinso'. This story delves deep into the history of their vampire heritage. It starts with Issei having strange dreams about his past life as a vampire. As the story progresses, he teams up with Shinso to uncover the secrets of their kind. The author does an excellent job of creating a spooky and engaging atmosphere, with detailed descriptions of the vampire world, its rules, and the characters' relationships.
Love is also a frequent theme. Tsukune may find love within the vampire community or have to deal with his previous human relationships while being a vampire. Sometimes it's a love triangle between a human, Tsukune as a vampire, and another vampire. This adds a lot of drama and emotional depth to the fanfictions. There are also themes of acceptance, both Tsukune accepting his new vampire self and the other characters accepting him for who he has become.
Well, the plot could start with Naruto being turned into a Shinso Vampire in some mysterious way. Maybe during a mission in a strange land, he gets bitten by a powerful Shinso Vampire. Then, he has to deal with his new powers and cravings while still trying to protect the Hidden Leaf. His friends might initially be scared of him, but as they learn more about his situation, they try to help him control his vampire side.
In 'naruto shinso vampire dxd fanfiction', the theme of adaptation is quite prominent. Characters are thrust into a completely new environment with different rules and species. They need to adapt to survive. Another theme is the struggle for power and control. With the addition of Shinso powers and vampirism, there are often power struggles within the story, whether it's between different factions in the DxD world or between Naruto characters and the new elements they've acquired.
One interesting concept could be the unique powers that a Shinso vampire might possess in the DxD universe. For example, their enhanced blood - related abilities might interact in unexpected ways with the devils' magic in DxD.
The unique vampire lore. In these fanfictions, Ichigo Shinso's vampire nature can bring in elements like superhuman strength, immortality, and a different view of morality. It makes for exciting action and drama.
One plot idea could be Tsukune's further exploration of his unique powers in the Rosario Vampire world. He might encounter a new type of enemy that challenges his abilities in ways he hasn't faced before. Another could be a love triangle involving Tsukune, Moka, and another character, creating a lot of drama and tension. Maybe Tsukune has to go on a quest to find a lost artifact that has significance in the vampire world, and along the way he discovers more about his own heritage.
One good story could be 'The Shinso Vampire's New School Life in Highschool DxD'. It might focus on how a shinso vampire adapts to the unique environment of the Highschool DxD world, dealing with the various factions and power dynamics. Another could be 'Shinso Vampire's Alliance in Highschool DxD' which could explore the idea of the vampire forming alliances with different characters in the series.