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.
The teachers at Hogwarts such as Dumbledore and McGonagall would most likely be main characters as well. Dumbledore's wisdom would surely play a role in guiding the younger twin, and McGonagall's strict yet fair nature would influence the twin's development at the school. Their interactions with the younger twin would shape the plot and the character's growth throughout the fanfic.
Well, obviously Harry Potter and his twin are the main characters. Harry is known for his courage and his connection to Voldemort. His twin, depending on how the fanfic is written, could be someone with a different set of traits, like being more studious or more outgoing. Then there would also be characters like Ron and Hermione who are likely to be involved in the story. They are Harry's best friends in the original series and would surely have a role to play in the fanfic as well, whether it's helping the twins with their adventures or dealing with the complications that the twin's presence brings.
Common themes include love and loyalty. The twin sister's love for her brother and her loyalty to him and their friends is a central aspect. There's also the theme of discovery. Discovering new spells, new places in the wizarding world, and even new aspects of their family history. And of course, the theme of good versus evil. Just like in the original Harry Potter series, the twin sister has to take a stand against Voldemort and his followers. In some fanfics, she might have a different approach to fighting evil compared to Harry, which makes for an interesting read.
One interesting plotline could be the younger twin having a unique magical ability that even Harry Potter doesn't possess. For example, the ability to communicate with magical creatures on a deeper level.
To write a 'His twin sister Harry Potter fanfic', you should research the lore of the Harry Potter series thoroughly. This includes the magic system, the different locations, and the social hierarchy in the wizarding world. Next, plan out a plot that involves the sister in a meaningful way. Maybe she discovers a new type of magic or uncovers a long - lost secret about the Potter family.
There's a fanfic called 'The Sister's Secret'. It's a bit darker in tone compared to others. Here, the twin sister has a secret that could potentially change the entire wizarding world. It's a page - turner as you keep wondering what will happen when the secret is revealed and how it will impact Harry and his friends.
Yes, there are likely to be such fanfictions out there. The Harry Potter fandom is vast and diverse, and fans often come up with creative and unexpected scenarios like this. However, the quality and content of these fanfictions can vary greatly.
One interesting plotline could be how the twin sister helps Harry deal with the challenges at Hogwarts in a different way than his friends. Maybe she has a unique magical ability that aids them in fighting the dark forces.
The forgotten twin can add a whole new dimension to the main storyline. If the twin has been living in the Muggle world, for example, they could bring in a different perspective on magic. They might not be as accustomed to the wizarding ways as Harry, which could lead to humorous or thought - provoking situations. Their presence could also create new alliances and rivalries. For instance, if they are sorted into a different house than Harry, they could form strong bonds with their housemates, and these new relationships could either support or oppose Harry's actions.