Maybe in the fanfiction, as they grow, they start a secret magical project. They combine their knowledge of different magical subjects, like Hermione's expertise in Transfiguration and Harry's talent in Defense Against the Dark Arts, to create something that changes the wizarding world for the better. For example, they might develop a new spell that can protect against all kinds of dark magic without harming the caster. And they have to keep it a secret at first because they don't know how others will react.
One interesting plot could be that as they grow up, they discover a new magical ability together that no one else has. This new power helps them solve mysteries in Hogwarts that even Dumbledore couldn't figure out.
One interesting plot could be Hermione's growing friendships. She might form closer bonds with some characters that were just acquaintances in the original story. For example, she could become really good friends with Neville and help him gain more confidence in his magical abilities.
Well, in some 'Hermione and Harry Dark Fanfiction', there might be a plot where they enter a dark, alternate magical realm. In this realm, they have to rely on their friendship and skills in new ways. They could encounter dark versions of their friends and have to fight against them, which would really test their loyalty to each other.
Perhaps in the fanfiction, Hermione and Harry get married due to a magical bond that forms between them after a dangerous encounter with a dark wizard. In their married life, they work together to reform Hogwarts' curriculum, incorporating more Muggle - friendly and practical magic. They face opposition from some traditional pure - blood families but overcome it with their combined wisdom and courage.
One interesting plot could be Harry and Hermione getting married and having to deal with the challenges of raising a magical family in a post - Voldemort world. They might face issues like how to educate their children about the dark past while still letting them enjoy their magical abilities.
Perhaps a plot where the child discovers a new form of magic that neither Harry nor Hermione were aware of. This could lead to a whole new adventure as they try to understand and control this new magic, with the help of their parents' friends and allies. It would be a story of discovery and growth, with the child facing challenges and making new friends along the way.
One interesting plot could be them exploring the wizarding world together as a married couple, solving mysteries that were overlooked in the original books. For example, they might discover a hidden chamber in Hogwarts that has secrets related to ancient magic.
One interesting plot could be them facing challenges from the wizarding world that doesn't fully accept their union. For example, some pure - blood families might oppose it. Another could be their adventures as a married couple, like exploring new magical places together.
A possible plot is that Hermione, as a succubus, discovers a connection between her new form and an ancient magic in the wizarding world. Harry and Hermione then team up to explore this connection and in the process, they uncover secrets about the origins of magic that were long forgotten. This could involve delving into ancient texts and visiting mysterious places.
One interesting plot is when the Great Hall is turned into a magical maze for a special event. Harry and Hermione have to work together to get through it. Along the way, they face different magical creatures and challenges, and it really tests their friendship and magical skills.
One interesting plot could be that Harry and Hermione travel back in time to change a major event at Hogwarts, like preventing the opening of the Chamber of Secrets. They might use their knowledge from the future to outwit Tom Riddle before he becomes Voldemort.