A more heartwarming plotline could be that Hermione's sister is also a brilliant witch, but she has chosen a different path in the magical world, like becoming a healer. The story could focus on their relationship as they support each other in their respective careers and adventures in the wizarding world.
One interesting plotline could be that Hermione's sister is a Squib, which creates a lot of tension and different family dynamics compared to Hermione's magical abilities. It can explore how the family deals with having a non - magical member in a magical world.
Another plotline might be that Hermione's sister is secretly working for a dark wizard. This would lead to Hermione being in a difficult situation of having to choose between her loyalty to her sister and her beliefs in the fight against the dark side.
Another plotline might involve Hermione being possessed by a time - traveling consciousness. This allows her to experience different eras of Hogwarts' history first - hand. She could then bring back important information from the past to help in the present, like how to defeat a powerful dark wizard that is starting to rise again in their time.
One common plotline is Hermione using the Time Turner to go back and change certain events in the wizarding world. For example, she might try to prevent some of the tragedies that occurred during the war. Another is her using it to relive certain moments with her friends, like spending more time with Harry and Ron in their earlier Hogwarts years.
One interesting plotline could be how the twin sister affects Naruto's journey. Maybe she has a different view on the ninja world and helps Naruto see things from a new perspective. For example, she might be more in tune with the spiritual side of being a ninja and teach Naruto about ancient jutsu that he otherwise wouldn't have known.
In some fanfics, the sister could be a key to unlocking an ancient magic that has been forgotten. Her presence in Hogwarts might stir up old secrets and prophecies. The story could revolve around how she and Harry work together to figure out this new magic and use it to defeat the dark forces.
Some fanfics might explore the idea of Hermione and Draco having to hide the pregnancy. Given their status in the wizarding world, it could cause a huge scandal. They might have to go into hiding, perhaps in a remote location. During this time, they learn more about each other's true selves. Draco could show his more vulnerable side, and Hermione could see that there's more to him than just the bully he was in school. And as the pregnancy progresses, they build a new life together away from the prying eyes of the wizarding community, preparing for the arrival of their child while also dealing with their own personal growth.
One possible plotline could be that Hermione discovers a dangerous curse about to befall Fred during a battle and uses her quick thinking and vast magical knowledge to counter it. For example, she might create a complex protective charm just in time. Another could be that Fred is trapped in a magical maze or trap, and Hermione uses her logic and spell - casting skills to break him free. Maybe she has to solve a series of riddles to get to him first.
A possible plotline might be that a dark wizard is after Hermione because of her new - discovered connection to the Malfoys. Draco, feeling a sense of family loyalty despite their differences, decides to protect her. Along the way, they learn more about their family's past and the reasons behind Hermione being separated from them. It could also involve Hermione trying to reconcile her Gryffindor values with the Slytherin - like values of the Malfoy family. There might be a scene where they have to face their parents together, and the Malfoy parents have to accept Hermione as their daughter, which would be a huge shift in their pure - blood ideology.
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.
In some fanfics, there could be a plotline centered around Bella's love life in the context of being Dean and Sam's sister. Maybe she falls for another hunter, and the brothers have to approve or disapprove. There could also be a plot where Bella is haunted by a past event that only she remembers, and she has to rely on her brothers to help her figure out what really happened and how to move on.
One possible plotline could be that Harry is jealous of Hermione's academic achievements. He might see her getting all the top grades and praise from the teachers, while he struggles more in his studies. This could lead to some tension between them, but also to Harry working harder to prove himself. Another plotline could involve Hermione's popularity among their peers. Maybe she gets invited to more social events or is more well - liked, and Harry feels left out. This jealousy could make Harry re - evaluate his own relationships and how he presents himself to others.