Hermione could be a main supporting character. She might offer her wisdom and support to Harry, helping him come to terms with the marriage contract. Also, she could act as a mediator between Harry and Severus at times.
One interesting plot point could be how Harry and Severus initially react to the marriage contract. Maybe Harry is shocked and resistant at first, while Severus is more resigned to it due to his sense of duty.
In fanfiction, a Harry Narcissa marriage contract can lead to really interesting plot twists. It might be used to create a political alliance within the wizarding world. For example, it could be a way to bring peace between the houses that Harry and Narcissa represent. This could involve a lot of drama as Harry would be in a rather unexpected relationship. It also might change the power dynamics in the story.
In fanfiction, a Harry and Narcissa marriage contract can lead to some really interesting plot twists. It might start as a political or family - related arrangement. For example, it could be a way to unite two powerful magical families. This could create a whole new dynamic in the wizarding world. Harry would be thrust into a different kind of relationship with the Malfoys, and Narcissa might see Harry in a new light, perhaps as a means to protect her family in a different way than she originally thought.
Harry might develop from being resistant to the marriage to being more open - minded. He realizes that Severus is not just the strict teacher he once thought. For Severus, he may start to soften his tough exterior. He begins to see Harry not as James Potter's son but as an individual with his own merits.
At first, it's likely to be full of tension. Harry may be hesitant and even a bit resentful about the marriage, while Severus is his usual cold self. But as time passes, they start to see each other's good sides. Harry realizes Severus's intelligence and Severus sees Harry's courage in a new light.
Well, in some fanfictions with the 'Harry Hermione Tonks marriage contract', it's a plot device to bring together different story elements. Maybe it was set up by some magical law from the past. It can create a lot of drama. Hermione might be conflicted as she has her own feelings for Harry, and Tonks being involved adds another layer of complication. It can make for some really engaging reading.
In the fanfiction, the marriage contract might involve Fleur and a character like Harry Potter himself. This could create a whole new dynamic. Fleur might see it as an opportunity to get closer to the hero of the wizarding world, or it could be a source of conflict between her and Ginny, who has feelings for Harry. There could be all sorts of magical stipulations in the contract, like they have to perform certain spells together or pass a series of wizarding trials as a couple.
Yes, there might be. The Harry Potter fandom is vast, and fanfiction writers come up with all sorts of creative and unique ideas. You can try searching on popular fanfiction websites like Archive of Our Own or Fanfiction.net. There could be a story where Harry Potter is involved in buying a marriage contract in some alternate universe or as part of a very different plotline created by the fanfiction author.