A possible plotline is that they are forced to work together due to their wolf mate bond in a situation that endangers the wizarding world. Maybe there is a dark magic threat that only their combined strength, as wolf mates, can overcome. This would not only test their relationship but also how the wizarding community views them. They could also face challenges from their families and friends who don't understand or accept their relationship.
One interesting plotline could be them teaming up to solve a mystery within Hogwarts that neither the Gryffindors nor the Slytherins are aware of on their own. For example, a hidden chamber that has secrets about the founders that could change the way the houses interact.
One interesting plotline could be their journey of understanding each other's past traumas. Gaara was once alone and feared, while Naruto was ostracized. They could bond over how they overcame those difficult times and became stronger. Their relationship as mates could be shown through their mutual support in battles and in dealing with the politics of the ninja world. For example, when facing threats from other villages, they stand side by side, using their combined skills to protect their own village and the new bond they share.
One interesting plotline could be how Harry and Blaise's friendship develops over time. Maybe they start off as rivals in school, but as they get to know each other better, they find common interests like a love for magical creatures. This could lead to them working together on projects related to it.
One possible plotline could be Harry and Neville teaming up to discover a new spell or magical ability that has been long forgotten in Hogwarts. They might explore the Forbidden Forest together in search of ingredients for a potion related to this discovery.
One possible plotline could be that Harry confesses his long - hidden feelings of friendship. Maybe after years of rivalry, he realizes Draco has a different side and he wants to start anew. He might confess in a moment of great danger, like when they are both facing a common enemy. This confession could lead to an uneasy alliance at first, as Draco is shocked but then slowly warms up to the idea of a real friendship with Harry.
Another plotline could involve a magical accident that binds their fates. Hermione and Draco find themselves magically married against their will. At first, they are furious and try to find a way to break the spell. But as they get to know each other during this time, they start to develop real feelings. Hermione might teach Draco about the importance of equality and he could show her some of the more nuanced aspects of Slytherin culture.
At first, their relationship might start with confusion and denial. They come from different backgrounds and have had a history of animosity. But as they start to feel the pull of the wolf mate bond, they slowly begin to accept each other. For example, they might start having secret meetings to understand what is happening between them.
One possible plotline could be the struggle of acceptance. Harry Potter might face opposition from the wizarding community when he mates with a werewolf. Another could be the discovery of new magical abilities or powers that come from this unique union.
One interesting plotline could be that they discover their twin relationship early on and try to keep it a secret from everyone at Hogwarts. They might secretly help each other out in classes and with their rivalries against other houses.
A great plotline might involve a magical competition where Draco, Blaise, and Harry are all forced to compete. As they face various challenges, they start to understand each other better. For example, they realize that they all have the same fears about the future of the wizarding world. It could also be a plotline where they are all transported to an alternate dimension and have to rely on each other to get back home.