One interesting concept could be how the original 'One Piece' world is expanded with the addition of an original character (OC) related to Viola. Maybe the OC has unique abilities that interact with Viola's powers of seeing the truth. For example, the OC could have a power that distorts the truth in a way that Viola has to struggle to see through it, creating an interesting dynamic in the story.
Perhaps an existing 'One Piece' character could be turned into the main antagonist in the context of this fanfic. For instance, a marine officer who sees the OC as a threat to the world government's order. Since Viola has ties to Dressrosa, which has its own complex relationship with the world government, this marine could target them both. The officer might use underhanded tactics to try and stop the OC and Viola from achieving their goals.
One common theme is friendship. Just like in the original One Piece, the OC often forms strong bonds with the existing crew members. Another theme is self - discovery. The OC usually starts with some unknown aspects about themselves and through their adventures, they learn more about who they are. And of course, the pursuit of dreams, as every pirate in the One Piece world has a dream.
The combination of a new original character (OC) with Hina in the One Piece world is what makes it interesting. It allows for new storylines that the original series might not have explored. For example, the OC could have a different view on the Marines or pirates compared to the existing characters.
A great plot could be that the OC is a doctor with a mysterious past. Hina gets injured during a battle and the OC is the only one who can save her. As the OC nurses Hina back to health, they start to have long conversations. The OC tells Hina about different cultures and places in the One Piece world that she has never heard of. This makes Hina see the world in a new light, and she starts to fall for the OC's knowledge and kind heart.
The relationship can be developed through shared goals. For example, if they both aim to find a certain treasure or stop a powerful villain. By working towards this common objective, they will have to rely on each other, communicate, and gradually understand one another better. This can lead to the growth of their relationship.
One possible storyline could be that the OC is a wandering adventurer who saves Princess Vivi from a new threat in Alabasta. They then team up to discover the source of this threat which turns out to be an old enemy of the kingdom who has returned with a new power. As they journey together, they develop a deep friendship and respect for each other.
One possible plot could be that the OC is a new pirate in the One Piece world and meets Hina during an island stop. They start off as rivals, constantly trying to outdo each other in various tasks like treasure hunting or helping the local villagers. But as time goes on, they realize they have more in common than they thought and develop a deep friendship that could potentially turn into something more.
Well, when it comes to 'One Piece Hina classmate OC fanfic', a lot depends on what you're interested in. If you like action - packed stories, you might find some where the OC and Hina team up to fight pirates. Some fanfics might also delve into the backstory of Hina and how the OC fits into it. For example, there could be a story where the OC is from the same village as Hina and they both have dreams related to the Grand Line.
The OC can be developed by having them learn from Vivi's strong sense of loyalty and duty to her kingdom. For example, if the OC was a bit of a carefree spirit before, seeing Vivi's dedication could make them more responsible. They could also develop their fighting skills by training with Vivi, who is no stranger to combat situations in the One Piece world.