Well, if it's a good fanfiction, the author would probably develop the character of the OC son of Sirzechs in a unique way. They could give him some of Sirzechs' powerful abilities, like his unique magic or leadership skills. Maybe the story could involve him facing challenges that are different from what other characters in Highschool DxD have faced, perhaps something related to his special status within the Devil world and how he has to prove himself despite his noble lineage.
One important aspect that could make this fanfiction great is the world - building. Since it's set in the Highschool DxD universe, the author should stay true to the lore while also adding new elements related to the OC. For instance, how does the fact that he's Sirzechs' son affect the power dynamics in the Underworld? Will he be involved in political intrigue? And also, his relationships with other species like the Angels and Fallen Angels could be a really exciting part of the story.
I haven't read this particular fanfiction yet, but generally, a fanfiction about the son of Sirzechs in the Highschool DxD universe could be really interesting. It might explore new powers, relationships, and storylines that the original series didn't cover. For example, how the OC would interact with the existing characters like Issei and Rias, and how his heritage as the son of Sirzechs would shape his destiny in the Devil society.
Character development would be a big part. The OC would have to grow, not just in terms of power, but also in his understanding of the complex world he's in. He'd have to deal with the expectations that come with being Sirzechs' son. There could be internal conflicts, like whether he wants to follow in his father's footsteps or carve out his own path. And his relationships with other characters, especially the female characters, could add a whole new dimension to the story. For example, he could have a love - hate relationship with a character who has different views on the Devil society.
One possible fanfic could be about their relationship as siblings in the context of the Highschool DxD universe. Maybe it could explore how Sirzechs' actions and decisions affect Rias. For example, his leadership in the Underworld might have an impact on Rias' development as a devil and her role in the school's Occult Research Club. It could also show how they support each other during difficult times, like when facing threats from other devil factions or powerful enemies.
The OC, as the Son of Sparda, could fit in by being a new and powerful entity. He might be initially seen as an outsider, but his powers would quickly draw attention. He could become involved in the power struggles between the different factions in Highschool DxD. For example, the devils might try to recruit him, while the angels might be wary of his presence. His unique abilities would also make him a valuable ally or a fearsome opponent. And in the high school setting, he could be a bit of an enigma to the other students, both human and supernatural.
One great fanfic could be 'Sirzechs' New Adventure'. It delves into her character in a unique way, exploring her relationships and powers. Another is 'Female Sirzechs: A Different Path' which shows a different side of her compared to the original series.
An OC (Original Character) in a Highschool DxD fanfiction having the Rinnegan could be an extremely powerful and unique addition. The Rinnegan, from the Naruto universe, brings a whole set of abilities like the Six Paths powers. In the context of Highschool DxD, this OC could use these powers in various ways. For example, the ability to see chakra could be translated into seeing the magical energy in the DxD world. They could use the gravitational powers of the Rinnegan to manipulate the environment during battles against devils, angels, or fallen angels. It would make for a very interesting and overpowered character in the Highschool DxD fanfiction setting.
Well, it could be about the OC, as the son of Thor, coming to the Highschool DxD world and showing off his godly powers. Maybe he'd have to deal with the various factions in the school, like the devils, angels and fallen angels, while also trying to fit in.
In this fanfiction, a key element is the conflict that the Son of Sparda OC might face. He's in a new world, Highschool DxD, which has its own set of rules and power dynamics. He may struggle to fit in or be accepted by the different groups. His powers, which are likely a blend of Sparda - like abilities and those related to the devils in Highschool DxD, could make him a target. For instance, some devils might see him as a threat to their power structure. Also, his journey of self - discovery is important. As he learns more about his heritage as the Son of Sparda, he has to figure out how to use his powers and where he stands in this new and complex world.
Well, it could start with the discovery of the OC's identity as Grayfia's son. This would surely stir up a lot of reactions among the different factions in the Highschool DxD universe. He could be thrust into various adventures, like having to protect a certain character or retrieving a powerful artifact. His relationship with his mother, Grayfia, would also play a significant role, perhaps she has certain expectations of him that he struggles to meet while also dealing with his own desires and goals.
The plot could involve a power - transfer situation. Sirzechs, being a very powerful devil, might decide to transfer some of his power to Rias for a special mission. This would put Rias in a new position of strength but also bring new responsibilities. She would have to learn to control this new power while also dealing with the jealousy or suspicion of other devils.
Highschool DxD female Sirzechs fanfics are appealing because they offer a fresh take on the existing universe. With a female Sirzechs, there are new dynamics to explore. Her character might have different insecurities, goals, and ways of interacting with the world around her. Fanfic writers can use this to create stories that are full of drama, action, and emotion. They can also explore how the other characters in the series react to this new version of Sirzechs, which can lead to some really interesting plot twists and character arcs.