One idea could be a story where the OC is a new transfer student at the school in the DxD universe. They accidentally cross paths with Dark Gabriel and initially there's a lot of tension due to misunderstandings. But as the story progresses, they start to understand each other's motives and form an unlikely alliance. This could lead to them facing various challenges together in the supernatural world of DxD.
Well, obviously there's Dark Gabriel. He is often depicted as a complex and powerful character. And then there's the OC, which stands for Original Character. The OC can be anyone the writer creates, with unique abilities, personalities, and backstories. For example, the OC could be a shy but extremely intelligent mage who catches Dark Gabriel's attention.
One popular plot idea could be the OC being a new student at the school and catching Gabriel's attention. Maybe the OC has a unique power or ability that Gabriel is intrigued by. Another idea is a story where the OC is in some sort of danger and Gabriel has to protect them. This could lead to a deeper connection between them as they face challenges together.
Well - developed characters make it interesting. If the original character (OC) has a unique personality, backstory, and goals, and their relationship with Gabriel is complex and evolving, it can be really engaging. For example, if the OC is a half - demon who struggles with their identity and Gabriel helps them come to terms with it.
You can start by looking on fanfic platforms like Fanfiction.net or Archive of Our Own (AO3). On Fanfiction.net, use the search function and type in 'Highschool DxD OC x Gabriel'. AO3 also has a great tagging system that can help you narrow down the results to find the most interesting fanfics in this category.
To write a good OC, start with giving them a distinct personality. For example, if you want them to be a contrast to Gabriel, make them more impulsive or hot - headed. Also, give them a backstory. Maybe they come from a family with a dark secret in the supernatural world. This will add depth to their character.
Perhaps the OC is a detective or investigator who comes to Gabriel's village to solve a mystery. Gabriel, having lived there all his life, has a lot of knowledge about the place and its people. They start working together, and during the process, they can't help but be attracted to each other's intelligence and determination. Their relationship blossoms as they get closer to solving the mystery.
A great plot for a Highschol DxD OC fanfic could involve time travel. Imagine your OC accidentally travels back in time and has to interact with the ancestors of the current characters. They might change something in the past that has a huge impact on the present DxD world. Also, a plot where the OC is cursed by an unknown enemy. To break the curse, they have to complete a series of dangerous tasks across different realms in the DxD universe. And what about a plot where the OC starts a club in the school that challenges the existing power structures? It would be full of drama and conflict.
Well, you could make an OC that is a half - angel, half - devil. This would give the character a very complex backstory and internal conflict, especially in the world of Highschool DxD where the angels and devils have their own politics and power struggles. Also, for the OP part, this OC could have a special ability to combine angelic and demonic powers in a new and powerful way.
Well, I know a fanfic where Issei and Gabriel team up against a common enemy. In this story, their relationship blossoms as they face challenges together. It's really interesting to see how their different personalities complement each other in the story.
One idea could be that the OC is a new transfer student to the school and immediately catches Kuroka's attention. They start off as rivals in magic or combat skills, constantly trying to outdo each other. As time passes, they realize they have more in common than they thought and gradually fall in love.