Another way their magical abilities could differ is in the area of spell - casting. Harry is good at defensive spells, but his sister could be excellent at transfiguration. This would mean that in different situations, they would rely on each other's skills. For example, when they need to transform something to solve a problem, his sister would take the lead, and when they are under attack, Harry would be the one to defend them using his defensive magic.
His magical abilities would likely be more nature - oriented. With Artemis being a goddess of the hunt, he might be able to communicate with magical creatures in the forest better than other wizards. And from Hera, he could have the ability to manipulate magical energy in a more powerful and efficient way. For example, his spells could be stronger and last longer.
One possible plot could be that Lemon and Harry discover some long - hidden family secrets together. Maybe they find out about a special power that runs in their family that Voldemort is also interested in. So they have to race against time to master this power and keep it out of Voldemort's hands.
One possible interesting plot could be their adventures at Hogwarts together. Since they are twins, they might have a special bond that helps them face challenges like the Triwizard Tournament. They could work as a team to solve the mysteries surrounding it, using their combined magical skills and the unique connection they have as twins.
In fanfiction, magical creatures often have more exaggerated abilities. For example, in canon, a unicorn is mainly known for its purity and healing powers. But in fanfiction, a unicorn might be able to communicate telepathically with wizards on a much deeper level. Another difference could be their behavior. Canon might show a centaur as a bit aloof and mysterious, while in fanfiction, a centaur could be much more involved in Hogwarts affairs, like teaching secret classes.
They inherit his magical abilities through genetics in the wizarding world. Since Harry was a powerful wizard, his genes likely carry the magical potential which is passed on to his kids.
Ron and Hermione are likely to interact with them. Ron might be a bit more protective of the sister, while Hermione would probably study and share knowledge with her. They could all be in the Gryffindor common room, discussing spells and strategies.
At first, they might be a bit competitive, especially in their studies at Hogwarts. But then, when they realize that they are stronger together, their relationship deepens. They could have heart - to - heart talks late at night in the Gryffindor common room. Also, if one of them gets into trouble, like the twin sister accidentally breaks a school rule, Harry would cover for her and vice versa. This would build a strong bond of trust between them. And as they face the challenges of the wizarding world together, their relationship evolves into one of unwavering loyalty.
Well, obviously Harry Potter is one of the main characters. His twin sister would be another main character. There might also be the usual suspects from the original series like Hermione and Ron, who would likely be involved in the story as friends and comrades to Harry and his sister. Dumbledore would probably also play an important role as he does in the original books, guiding and protecting the young wizards.
One common theme is family. Since she's Harry's twin sister, the stories often explore their family connection and how it affects their lives in the wizarding world. Another theme is identity. The sister has to figure out who she is in relation to Harry and also as an individual witch. Magic is also a big theme, of course, like how her magic might be different or similar to Harry's.
Well, Harry Potter is mainly known for his proficiency in spells like Expelliarmus and his ability to face Voldemort directly. The fem Harry Potter as the daughter of Persephone would have very different abilities. She might have the power to control plants, so she could make vines grow and entangle enemies, which is quite different from Harry's more combat - oriented spells. Also, she could have an affinity for the underworld, perhaps being able to communicate with the spirits of the dead or even traverse the boundaries between the living and the dead world, something Harry has no such ability to do.