Perhaps they work in different departments. Harry could be in charge of the Quidditch team coaching, while Draco is in the administrative side, handling student discipline. They constantly butt heads because of their different approaches. Harry is more lenient and believes in second chances, while Draco is stricter. However, when Hogwarts faces an external threat, they have to put aside their differences and work together to protect the school.
At first, they would avoid each other as much as possible. But when they are forced to collaborate on something important, like planning a big event at Hogwarts, they begin to communicate. They argue a lot in the beginning, but then they realize that they have more in common than they thought. They both care about Hogwarts and its future, and this common ground could be the foundation for a better relationship.
If they were friends before Hogwarts, it could create a lot of internal conflict at Hogwarts. Draco might be torn between his new Slytherin friends who dislike Harry and his long - standing friendship with Harry. He might try to keep their friendship a secret, which could lead to misunderstandings between them.
If Harry were Draco's older brother in this fanfiction, their relationship at Hogwarts would be a total mess - up of the original dynamic. Harry would be constantly torn between the Gryffindor values he adheres to and his family bond with Draco. Draco might start to question his Slytherin - only ideology because of his connection to Harry. For example, they might find themselves in situations where they have to choose between their house loyalties and their new - found brotherly bond, like during the Quidditch matches or the Triwizard Tournament.
At first, their relationship might be full of confusion. They've been brought up with different values - Harry with his Gryffindor courage and sense of justice, and Draco with Slytherin pride and ambition. But as they discover they're twins, they'd start to see the similarities in themselves. They might begin by being a bit hostile towards each other, but gradually, as they face challenges together, like dealing with a particularly tough teacher or a dangerous creature on the grounds, they'd form a bond.
One possible plot could be that they meet at a wizarding event in their early childhood. Maybe their families are both attending a magical fair, and the two boys, not yet influenced by the future rivalries at Hogwarts, strike up a friendship over their shared love for magical creatures. They might spend the day together looking at baby unicorns and discussing their favorite magical beasts.
In some fanfictions, they might initially dislike each other. Draco, with his pure - blood supremacist upbringing, could look down on Harry. For example, he might make snide remarks about Harry's lack of knowledge about the wizarding world. However, this early encounter could also lead to a different dynamic later at Hogwarts. Maybe Harry would be more prepared to face Draco's taunts because of this prior meeting.
They could form a sort of alliance. Harry, being the hero figure, could bring Draco into his circle of friends more often. Draco, with his Slytherin knowledge and connections, could help Harry in understanding some of the more mysterious aspects of Hogwarts, like the secrets of the Slytherin common room. Their relationship could bridge the gap between Gryffindor and Slytherin, changing the whole dynamic of the houses at Hogwarts.
Well, it could be a fanfiction where Draco is jailed in the Hogwarts setting. Maybe he's been caught doing something bad, like getting involved in dark magic activities or plotting against other students. But without reading it, it's hard to say for sure.
In Hogwarts fanfiction, Draco could potentially crawl through secret passages. There are many hidden corridors and tunnels in Hogwarts, and Draco might be exploring them in a sneaky way, perhaps on a secret mission or just to find a quiet place away from others.