The male OC could have a tragic past, like losing his first Pokemon in a battle. This makes him more cautious and determined. Cuthia can be an optimistic character, always seeing the good in every situation. When they come together, the OC's pessimism starts to fade in the face of Cuthia's positive attitude. Their relationship helps the OC to open up more and become more confident, while Cuthia becomes more aware of the hardships in the Pokemon world through the OC's experiences.
For the male OC, start with his backstory. Maybe he grew up in a small town where Pokemon were revered, and that's what inspired him to be a trainer. His personality could be brave but also a bit impulsive at times. For Cuthia, think about her unique traits. She could be gentle and have a special ability to communicate with certain types of Pokemon. As they interact in the story, their characters will develop based on how they respond to each other's actions and the challenges they face.
One plot idea could be that the male OC is on a journey to become a Pokemon master and he meets Cuthia in a forest. Cuthia is in trouble, being chased by some wild Pokemon, and the OC uses his Pokemon to rescue her. From there, a friendship forms and they decide to travel together, facing various challenges along the way, like gym battles and encounters with evil teams.
The Saiyan male OC can be developed by giving him a moral code. For instance, he might believe in always fighting fair and never using dirty tricks. This can contrast with Kale who, in her Berserker state, might not be as in control. As for Kale, you can develop her character by showing how she adapts to new situations. When the OC introduces her to new Saiyan traditions or places, how does she react? Does she embrace them or is she hesitant? Their characters can grow as they influence each other. The OC can inspire Kale to be more confident in her normal state, and Kale can teach the OC about the raw power that lies within a Saiyan when pushed to the limit.
For the male OC, you can start by giving him a distinct personality trait. For example, if he's really shy, it can create interesting interactions with Rias who is often more confident. This shyness could be due to his insecurities about his newfound powers or his place in the supernatural world.
When writing a 'Male OC x Pokemon Fanfiction', you need to make your OC believable. Give him flaws as well as strengths. He might be great at battling but not so good at catching Pokemon. Also, research the Pokemon lore. Know their types, abilities, and evolution. This knowledge will help you create more engaging interactions between your OC and the Pokemon. For example, if your OC has a water - type Pokemon, explain how they use its abilities in battles or to solve problems.
For the male OC, you can start by giving him a distinct backstory. For example, if he was an orphan who grew up in a rough part of a city but has a natural talent for magic. For Alduin, emphasize his power and his pride as a dragon. Then, as the story progresses, show how they both change. Maybe the OC becomes more confident in his abilities and Alduin becomes more empathetic towards other beings.
Give each Pokémon in the harem a distinct personality trait. For example, one could be very shy but extremely loyal, while another could be bold and always ready to take risks. For the OC, consider giving them a backstory that explains why they are able to attract such a diverse group of Pokémon.
Effective character development in this fanfiction setup requires a deep understanding of each character. The OC can be developed by giving her unique quirks, like a love for a particular type of music from her home planet. Sideswipe's character can be enhanced by showing his loyalty not just to his cause but also to the people he cares about, like how he'd always be there to protect the OC from danger. Sunstreaker, on the other hand, can be developed through his internal struggle. Maybe he's conflicted between his feelings for the OC and his sense of self - importance. As they interact more, these aspects of their characters can be explored further, for example, when they face a common enemy and have to rely on each other's strengths.
For Merlin, you can focus on his dual identity. He's a powerful wizard but has to hide it. The OC female elf could be developed by giving her unique elven traits. For example, she could have a special connection to nature. Let their relationship be a way to develop their characters further. When they interact, Merlin might become more in touch with his magical side, and the elf could become more open to humans.
For the fem Naruto, you can develop her character by emphasizing her strong - willed nature. Since she is in a relationship with a weak OC, show how her protective side comes out. For the OC, start with their weakness and gradually show them growing. Maybe they start off being afraid of everything but as they interact with fem Naruto, they become more confident.
For Natsu, you can focus on his loyalty and protectiveness in the relationship. Since it's a secret, he might be more cautious and less impulsive than usual. For the OC, give her some unique traits. Maybe she's shy but has a hidden fiery side like Natsu. You can show her growth as she becomes more confident in the relationship.