The OC could be a fellow scientist who disagrees with Kabuto's methods. They are forced to work together on a crucial experiment. At first, there is a lot of tension between them. But as they face various challenges during the experiment, like unexpected results and shortages of resources, they start to respect each other's skills. Eventually, they might even come up with a new approach that combines both of their scientific views, leading to a breakthrough in their research.
One idea could be that the OC is a test subject in one of Kabuto's experiments. The OC has some unique ability that Kabuto wants to harness. For example, the OC can communicate with a certain type of animal, and Kabuto believes this could be useful in his research for creating new ninja techniques. As the story progresses, the OC and Kabuto develop an unexpected bond, with the OC gradually changing Kabuto's view on the morality of his experiments.
Maybe the OC is an undercover spy sent to infiltrate Kabuto's experiment facility. The OC pretends to be a willing participant in the experiments, but in reality, is trying to gather evidence against Kabuto. However, as the OC gets closer to Kabuto during the experiment processes, they start to see the complexity of his character. He's not just a mad scientist; he has his own reasons and traumas that led him to these extreme experiments.
To develop the OC, think about their goals. Do they want to stop Kabuto's experiments, or are they actually hoping to help him achieve something greater? This goal will shape their actions throughout the fanfiction. Also, consider their relationships with other characters in the Naruto universe. Maybe the OC has a connection to a particular ninja clan, and this connection influences how they approach the experiments. Their appearance can also play a role. For instance, if they have a distinctive look, it can attract Kabuto's attention or make other characters react to them in a certain way.
One idea could be a story where Fem Kabuto is a spy in a different village but Naruto discovers her true identity and instead of turning her in, he tries to understand her motives. This could lead to a deep friendship and eventually more. Another plot could be Fem Kabuto using her medical skills to save Naruto during a tough battle and they start to bond over their shared experiences of being alone at times. A third plot could be that Fem Kabuto has a secret mission related to Orochimaru but Naruto's positive influence makes her question her loyalty to Orochimaru.
One idea could be that Fem Kabuto is a double agent working for both Orochimaru and Naruto's side secretly. She uses her medical ninjutsu skills to heal Naruto's team during a difficult mission, and in the process, she starts to question her loyalty to Orochimaru.
One idea could be that Kabuto, a rather reserved character, falls in love with a new shinobi in the village. They meet during a training session where she shows extraordinary skills, and he's immediately intrigued. As they start to work together on missions, their relationship slowly blossoms. They face challenges like disapproval from some of the traditional shinobi elders who don't think Kabuto should be involved with someone new to the village. But their love overcomes all these obstacles.
One idea could be that Sakura and Kabuto are forced to work together on a dangerous mission in a mysterious forest. Along the way, they start to see different sides of each other and develop an unexpected bond.
One plot idea could be Kabuto's redemption through his interactions with Praites. Maybe Praites shows Kabuto a different way of life or a new perspective on the ninja world, leading Kabuto to question his past actions.
Maybe Orochimaru is injured and Kabuto's sister, who has some unique healing abilities, is tasked with taking care of him. During this time, they have deep conversations about their lives, their goals, and their pasts. This interaction could lead to a romantic relationship as they realize they have more in common than they thought. For example, they both might have a sense of being outsiders in the ninja world.
One idea could be that the OC is a healer who stumbles upon Frankenstein's monster in the woods. The OC decides to help the monster, despite the danger, and they form an unlikely bond. This could lead to a story of redemption for the monster and a journey of self - discovery for the OC.
Maybe the OC is a scientist who has developed a device that can temporarily steal The Flash's speed. At first, the OC uses it for personal gain, but then realizes the chaos it's causing in the city. They then team up with The Flash to take down other villains who are after the device. Or, the OC could be a meta - human with the ability to see the future in flashes. The Flash initially doesn't trust the OC, but as they start to have the same visions, they have to work together to prevent a major disaster from happening.
The OC could be a psychic who is unknowingly drawn to Derry because of Pennywise's presence. Their psychic powers allow them to sense Pennywise's energy but not fully understand what it is at first. As Pennywise tries to manipulate the OC, the OC starts to fight back using their psychic abilities, creating a battle of wills and powers that could span across different dimensions within Derry, from the sewers to the abandoned houses and the mindscapes of both characters.