Her relationship with Harry could be complex. Harry, having faced so much death himself, might be initially afraid for his daughter's connection to Death. But he would also be protective. He could be overprotective at times, trying to shield her from the darker aspects of her powers. There could also be a sense of pride in him, knowing that his daughter is so special. He might teach her everything he knows about magic and the values he holds dear, like friendship and courage.
They could have a somewhat strained relationship at first. Harry might not fully understand her powers and the implications of her being the daughter of Death. She, on the other hand, might feel like Harry is trying to hold her back from exploring her true self. But as time passes, they come to understand each other better. Harry realizes that she needs to embrace her identity to fulfill her destiny, and she sees that Harry's caution comes from his love for her.
With Dumbledore, it would be very different. Dumbledore, who was always a guiding figure for Harry, would now have to approach her with a new level of respect. He would see her as an equal or perhaps even more powerful. Their conversations would be more of a sharing of wisdom between two great powers. And when it comes to the Malfoys, they would be extremely cautious around Fem Harry. Lucius Malfoy might try to use her new status for his own gain, while Draco might be torn between his family's expectations and his own growing respect for Harry as the Goddess of Death.
Her relationship with Ron and Hermione would be different. They might be in awe of her divine heritage at first. Ron could be a bit more protective, seeing her as something special. Hermione would be curious and eager to study about Celestia because of her connection to Harry. And with Draco, he might be more envious or try to use her secret against her.
She would likely start off confused about her identity. But as she learns more about being Zeus's daughter, she would become more confident. Her character could develop a sense of leadership, since she has such a powerful heritage.
Her character could develop through her interactions with other students. Since she's different, she might face some prejudice at first. But as she shows her skills and kind heart, she gains friends. For example, she could use her Artemis - given archery skills to win a Hogwarts tournament, which earns her respect.
She would be much more aggressive. While Harry was brave and sometimes impulsive, her aggression would come from her Ares heritage. She might be quicker to use force rather than diplomacy or cleverness like Harry often did.
She could be portrayed as having a very close connection to nature, just like the elves in Tolkien's works. For instance, she might be able to communicate with magical creatures in the Forbidden Forest on a deeper level than other characters.
Her relationship with her moms would be super loving. They would be very protective of her and always there to support her dreams. For example, if she has a soccer game, they would be on the sidelines cheering the loudest.
Her character would likely develop as a combination of the best traits of both Harry Potter and Tony Stark. She'd be brave like Harry, facing any danger that comes her way in both the magical and non - magical realms. And she'd have Stark's intelligence and quick - wittedness. So when she's in a tight spot, she'd be able to think on her feet and come up with creative solutions.
She would likely start off a bit confused. Growing up as a daughter of Poseidon in the wizarding world would be strange. But as she discovers more about her powers and her heritage, she'd become more confident. For example, when she first realizes she can control water in ways other wizards can't, she might be scared, but later use it to her advantage. Maybe she starts as a shy outcast but then becomes a leader as she learns to combine her demigod and wizarding skills.
In many of these fanfictions, their relationship often starts off as rocky. Given their history in the original series, there's initial animosity. But as the story progresses, they start to see each other in a new light. For example, in some fanfics, the female Harry's bravery and intelligence attract Draco, and he begins to question his own prejudices.