Maybe an OC who is a foreign exchange student in Shinji's school. They could introduce him to different cultures and values, which might help Shinji in his personal growth and his understanding of the world around him. This would also create a lot of interesting cultural exchange moments in the fanfic.
An OC who is a supernatural being, like a spirit or an angel, sent to protect Shinji. This could lead to some intense action scenes as the OC battles the threats against Shinji, and also some deep emotional moments as they form a bond with him.
One concept could be an OC who is a time - traveler and has to interact with Hirako Shinji at different points in his life. This would add an element of mystery and could change the course of the original story in unexpected ways.
Start with a distinct personality trait. For example, if you want your OC to be the opposite of Shinji in some ways, make them extremely confident and outgoing. This contrast will create interesting dynamics between the two characters.
One possible plotline could be that Shinji discovers a female character he cares about is pregnant, and he has to deal with the shock and then step up to support her. Maybe he has to face some challenges within his group or community because of the unexpected pregnancy.
One interesting concept could be an OC that is a powerful mage in the Undertale fanfic world. They could have unique spells that interact with the game's existing magic system in unexpected ways.
One interesting concept could be unique vampire abilities. In Hellsing OC Fanfic, authors might create original vampires with powers different from the canon ones. For example, an OC vampire could have the ability to control shadows, adding a new layer of mystery and danger to the story.
Well, one interesting concept could be the unique powers and abilities that the original character (oc) in 'the gamer oc fanfic' might possess. It often makes the story more engaging as the oc navigates through various challenges using these special powers.
There may not be a large number of Shinji Hirako fanfictions with a pregnancy plot specifically. However, if you join some Bleach - related fan communities (since Shinji Hirako is from Bleach), you might be able to ask fellow fans if they know of any such stories. They could point you in the right direction or even share some unpublished works they are aware of.
Well, for a Shinji fanfic, you could write about Shinji traveling to different timelines. He could meet different versions of himself and learn from their experiences. Or perhaps a fanfic where Shinji is the mentor to a new pilot. He could pass on his knowledge and wisdom, while also dealing with his own unresolved issues. Also, a story where Shinji forms a secret club with some of the other Nerv members to have a bit of normalcy in their crazy lives could be really interesting.
In this fanfic, an interesting concept could be the idea of in - game items. The oc might find or earn items that have special powers in the Naruto world. These could range from weapons that are stronger than normal ninja tools to artifacts that can unlock hidden jutsu. It would be really cool to see how these items are used in the context of the Naruto universe and how they help or hinder the oc's progress.
Another concept could be how the oc reincarnated in the Naruto world deals with the existing clans and their politics. They might introduce new ways of thinking about the relationships between different clans, like trying to bridge the gap between the Uchiha and the rest of the village in a new way.
Well, one interesting concept could be the unique telepathic abilities of the original character (oc). It might add a new layer of mystery and interaction within the Twilight universe. For example, the oc could use telepathy to communicate with vampires in a different way than the normal characters, perhaps picking up on thoughts that are hidden even from other vampires. This could lead to all sorts of new plotlines and character dynamics.