Well, they could start a project together while living together. Maybe they decide to research some long - forgotten magic spells. Along the way, they discover secrets about Hogwarts or the founders. Also, they might have magical mishaps in the house, like a charm gone wrong that makes the furniture start talking. This would lead to them working together to fix it and in the process, their relationship could grow deeper.
One possible plotline could be their struggle to combine their different living habits. Ron might be a bit messy while Hermione is very organized. For example, Ron leaves his Quidditch gear all over the place and Hermione has to find a way to deal with it without starting a fight. Another plotline could be them decorating their new place together. They could have different ideas about the style, like Ron wanting a more Gryffindor - themed room with lots of red and gold, while Hermione prefers a more practical and book - filled space. Also, they might face some magical mishaps in their new home. Maybe a spell goes wrong while they're trying to set up some magical protection around the house.
Well, in some fanfictions, they grow up together and form a really strong friendship. This might lead to them being partners in all kinds of school projects at Hogwarts, not just the ones they do in the books. They could start their own secret study group where they research advanced magic and share their findings with each other, which then gives them an edge over other students.
In a fanfiction, they could be living together in a secret location. Hermione is on a mission to research a very rare and dangerous form of magic, and Draco has some knowledge about it from his family's library. They form an uneasy alliance. As they live together, they find that they have to rely on each other more than they thought. Draco helps Hermione with the more Slytherin - like aspects of their research, like secrecy and cunning, while Hermione teaches Draco about the importance of kindness and justice. Their living situation becomes a catalyst for personal growth and a potential romantic relationship.
One possible plotline could be Harry learning more about his parents from Sirius. Sirius could share all the little details, like how James was in school, his mischievous deeds, and how he courted Lily. This would give Harry a deeper connection to his family's past. Another could be Harry and Sirius training together in magic, especially in defensive spells. Sirius, being a skilled wizard, could teach Harry some unique spells and techniques that he might not learn at Hogwarts. Also, they could have adventures in the wizarding world together, exploring places that are off - limits to most students.
One possible plotline could be them being paired for a difficult school project at Hogwarts. They start off hating the idea but gradually come to respect each other's skills. Draco might contribute his knowledge of the Dark Arts' history in a more practical way, while Hermione uses her vast book - learned knowledge. Another could be them working together in the post - war wizarding world to reconcile the pure - blood and Muggle - born relations. Draco, coming from a pure - blood family, and Hermione, a Muggle - born, could use their influence to change the views of others.
One possible plotline could be that Harry hypnotizes Hermione to help her overcome her fear of a particular spell. For example, the Patronus charm. Under hypnosis, she is able to face her inner demons related to the spell and eventually masters it. Another plotline might be that Harry hypnotizes Hermione as part of a prank gone wrong. But then they end up learning something new about each other's subconscious minds. A third plotline could be that Hermione asks Harry to hypnotize her to retrieve a lost memory, which leads to a whole adventure of discovery in her past.
One possible plotline could be their initial rivalry at a young age. Since they come from different backgrounds, with Draco being a pure - blood elitist and Hermione a Muggle - born, they could constantly compete in academics and magical skills at Hogwarts. As they grow up, they gradually realize they have more in common than they thought, like their love for magical knowledge. This could lead to a slow - burn friendship and perhaps something more.
A plotline could be that they live together and discover a mysterious object in their shared living space. They then have to figure out what it is and where it came from. Along the way, they might meet new characters or encounter old enemies who are also interested in the object. This would force them to work together even more closely, relying on each other's strengths and skills to protect the object or keep it out of the wrong hands.
One interesting plotline could be Harry and Hermione discovering a long - lost secret vault in Gringotts. Maybe it contains powerful magical artifacts that can change the course of the wizarding war. Another could be that they are on a mission to retrieve something from the vault that is crucial for their fight against Voldemort, like a spellbook with ancient and powerful spells.
One possible plotline could be that they are practicing magic for an upcoming difficult exam at Hogwarts. They might be working on advanced spells like the Patronus charm and Hermione is helping Harry perfect it.