To develop Harry in relation to Acheron, show how he adapts to Acheron's presence. He might start to question his own morality and power when compared to Acheron. Acheron can be developed by showing his reaction to the relatively 'innocent' world of Harry. He could start to soften his hard edges as he spends more time with Harry and experiences the warmth and hope in the wizarding world. This could be a long - term process, with setbacks along the way, but ultimately leading to a more complex and rounded character for both of them.
For Harry, you can focus on his growth beyond what we see in the original series. Maybe he becomes more cynical after all he's been through, and Acheron challenges his views. For Acheron, explore his past more deeply in the context of the fanfiction. Have Harry learn about his traumas and help him heal in some way.
In fanfiction, Harry can develop by learning new magic from Acheron or being exposed to different cultures and powers. Acheron, on the other hand, can develop his relationship with Harry by starting to care about the wizarding world and its inhabitants. This could lead to him becoming more empathetic and less isolated. For example, Harry could introduce Acheron to his friends at Hogwarts, and Acheron could learn about friendship and loyalty from them.
Well, aside from Harry Potter and Acheron, other characters from the original 'Harry Potter' series often play important roles too. Hermione and Ron might be there to support Harry in his new adventures with Acheron. Dumbledore could also make appearances, perhaps guiding Harry and Acheron in their journey, especially if they are dealing with something that has to do with the greater good of the wizarding world.
For Harry, you can explore his growth in a non - magical world. He might initially struggle without his wand and the familiar magical environment. But as he teams up with Batgirl, he could learn to adapt and use his wits and basic magical knowledge in new ways. For example, he could use his knowledge of potions to create makeshift antidotes for toxins in Gotham. Batgirl, on the other hand, could learn about the existence of magic from Harry, which could expand her view of the world. This new knowledge could make her more open - minded when facing unusual threats in the future.
Another aspect of their development could be through cultural exchange. Harry could introduce Tony to the wizarding culture, like the significance of Hogwarts houses and Quidditch. Tony could introduce Harry to the world of superheroes and their code of ethics. This exchange could lead to changes in their personalities. Harry might become more confident in the non - magical world, and Tony could become more open - minded towards things that science can't explain.
For Harry, you could focus on his sense of justice. Maybe he's initially wary of the vampire but his experiences with Voldemort have taught him not to judge too quickly. Fleur can be developed by highlighting her Veela allure and how it affects the vampire. The vampire could be developed by giving him a tragic backstory. For example, he was turned against his will and is trying to find a way to reverse it. This could create an interesting dynamic between the three characters.
For Harry, you could show his struggle to accept Pansy at first. Maybe he has to overcome his preconceived notions of her from their Hogwarts days. As the story progresses, he could start to see her in a new light and become more open - minded.
For Harry Potter, in a fanfiction with Sylvanas, his character could be developed by showing his reaction to Sylvanas' more morally gray actions. He might start to question his own black - and - white view of good and evil. For example, when Sylvanas uses dark magic for what she believes is a greater good, Harry could be forced to think about the nature of magic and its use.
For fem Harry, her character can be developed by showing her struggle with her new identity in a world with Poseidon. She could start as a bit of a loner, but as she bonds with Poseidon, she becomes more confident. Poseidon, on the other hand, can be developed by showing his softer side. Maybe he starts as a very strict god, but as he gets to know fem Harry, he becomes more lenient and caring.
For Harry, his growth could be shown through how he becomes more open - minded. He starts to embrace Luna's quirks and her different way of seeing things, which in turn makes him more accepting in general. For example, he might initially be a bit hesitant about Luna's belief in some of the more out - there magical creatures, but as they date, he starts to see the beauty in her imagination.
For Harry, you could explore his family background more deeply. Maybe he discovers some long - lost relative on the Isle who has a different view on life, which makes Harry question his own actions and values. For Gil, he could be developed by having him learn a new skill, like fishing in a more sophisticated way, which could also give him more confidence.
The foster family characters can be developed in many ways. If they are good - hearted, they could show Harry different values. They might be very strict about magic use, which makes Harry respect the rules more. Or if they are bad, they could have their own motives for taking Harry in, like using him for his fame. Their actions and words can gradually reveal their true natures.