Perhaps an OC who is a half - human, half - beast creature. This OC could struggle with acceptance in both the human and beast - kin societies. They end up meeting the main characters during their adventures and learn to embrace their unique identity with the help of the group, while also adding their own combat skills, which are a blend of human strategy and beast - like strength, to the team.
One idea could be a crossover with 'Sword Art Online'. The main character from 'arifureta' could find themselves trapped in the virtual world of SAO. They could use their unique skills and abilities from 'arifureta' to survive and perhaps even find a way to break the game. Another idea is a crossover with 'Overlord'. The power dynamics between the characters from both series would be really interesting to explore, like how the powerful beings in 'Overlord' would react to the 'arifureta' characters' abilities.
A really interesting 'arifureta fan fiction' could be about a world where magic and technology blend in a different way than in the original story. Imagine if Hajime discovers a way to combine his modern - day knowledge with the magic of the Arifureta world in a completely new and unexpected manner. This could lead to all sorts of new adventures and challenges for him and his friends.
Some stories in arifureta lemon fanfiction might involve the characters exploring new aspects of their powers. For example, the main character could find a new way to enhance their combat abilities. There could also be stories that revolve around the characters' backstories, like how they came to be who they are. And there may be some heart - warming tales of friendship and camaraderie within the arifureta world.
Some fanfictions focus on the characters from Naruto being transported to the Arifureta world. Picture Naruto, Sasuke, and Sakura suddenly finding themselves in a world full of monsters and strange magic. They would have to adapt quickly, learn the new rules, and use their ninja skills in a completely different environment. This would be a great opportunity for character development and exploring new relationships.
One idea could be to explore the Riddler's origin story from the perspective of your original character (OC). Maybe your OC is a detective trying to solve the mystery of the Riddler's first crime spree. Another idea is to have your OC be a sidekick of the Riddler, either willingly or by being forced into it. They could then have a complex relationship where the OC tries to influence the Riddler's actions for better or worse.
One idea could be an OC who is a brilliant scientist in the Fallout world. They could be working on a secret project to reverse the effects of radiation. Another idea is an OC who is a wandering trader, having all kinds of adventures while traveling from one settlement to another, facing raiders and mutants along the way. And a third idea could be an OC that is part of a new faction trying to bring peace and order to the wasteland.
You could also create an OC human who discovers a hidden talent for communicating with trolls through music. In the fanfiction, this character could use their musical ability to bridge the gap between the two worlds, maybe even creating a new form of harmony between trolls and humans that was previously unthinkable.
One idea could be to create a story where your Bratz OC is a new student in Stilesville. She has a unique fashion sense that both confuses and intrigues the other Bratz girls at first. As the story progresses, they become friends and she helps them design a whole new line of clothing for an upcoming fashion show.
One idea could be creating an OC who is a transfer student with a unique past related to the Dark Hour. For example, they might have had a family member affected by Shadows long before coming to the school. Another idea is an OC with a special ability that doesn't quite fit the normal Persona - using skills that are more about mental manipulation rather than direct combat. And you could also have an OC who is initially a skeptic about the whole Persona thing but slowly gets drawn into it.
One idea could be creating an OC who is a new recruit in the Hellsing Organization. They could have a unique power, like the ability to control shadows, which adds an interesting dynamic to the battles against vampires. Another idea is an OC that is a vampire with a conscience, struggling between their blood - thirsty nature and the human values they still hold. This can create complex moral dilemmas within the Hellsing universe.