In the fanfiction, Hermione and her older sister could have a complex relationship. Maybe the sister is overprotective, constantly looking out for Hermione at Hogwarts, especially with all the dangerous situations she gets into. The sister could also be a bit jealous of Hermione's academic success and magical abilities, which could lead to some sibling rivalry.
It's possible that the older sister in the fanfiction is a bit of a rebel compared to Hermione. While Hermione follows the rules, the sister might be more adventurous and gets Hermione into some unorthodox situations. This could either strengthen their bond as they face the consequences together or cause some friction as Hermione tries to stay out of trouble.
The older sister could act as a mentor. Since she's older, she might have more experience at Hogwarts and could guide Hermione through the social and academic aspects. For example, she could tell Hermione which professors are more lenient and which ones to be extra careful with.
The plot could revolve around the older sister being a secret agent of the Order of the Phoenix. She could be involved in dangerous missions while also trying to protect Hermione from getting too involved in the dangerous wizarding politics. For example, she might try to keep Hermione away from Harry Potter's dangerous adventures at first.
She could be a half - blood like Harry. Maybe her mother was a muggle - born witch and her father was a pure - blood wizard. This mixed heritage could give her a unique perspective on the wizarding world's issues regarding blood purity.
There's also 'Granger Sisters Unite'. This one focuses on the bond between Hermione and her older sister. It shows how they work together to solve mysteries within the wizarding world, and how their combined intelligence and magic skills are a force to be reckoned with. It's a heartwarming and action - packed fanfiction.
In the fanfiction, they could have a very protective relationship. The brother might always be looking out for Hermione, especially in dangerous situations at Hogwarts. He could be like a secret guardian, using his own unique skills and knowledge to keep her safe.
Well, perhaps the older sister could be a powerful witch. She might protect Harry from the Dursleys' mistreatment in a more forceful way than in the original story. For example, she could use magic to make sure Harry has enough food and a proper room.
In fanfiction, their relationship can be complex. The older sister might act as a protector for Sasuke. For example, she could shield him from the darker aspects of the ninja world when he was young. This would create a deep sense of trust between them.
Maybe an original character could be created. This sister could be a powerful and wise ninja who has been traveling the world. She comes back to the village just in time to take Naruto under her wing. She could have a special kekkei genkai that she helps Naruto understand and perhaps develop in himself.
Often, it starts with a chance encounter. Maybe the older man helps Hermione out of a difficult situation, like saving her from a dangerous spell or helping her with a complex magical research problem. This initial interaction sparks her interest in him.
If Hermione was Malfoy's sister in fanfiction, it would be a huge shift. Harry would be confused and cautious. Hermione, being the intelligent and independent character she is, would try to bridge the gap. She would use her knowledge and skills to help Harry understand that family doesn't define a person. Over time, they might develop an even deeper understanding of each other as Hermione has to constantly prove her loyalty and Harry has to learn to trust her in this new context.