One possible storyline is that the marriage contract is part of a dark plot. Some evil force in the wizarding world might be using it to manipulate Harry and Narcissa. They then have to work together to figure out who is behind it and how to break the contract if they don't want to be married. Another idea could be that the contract was made long ago to protect something or someone. Harry and Narcissa have to uncover the secrets behind it.
One possible storyline is that the marriage contract is discovered during a time of great unrest in the wizarding world. Harry and Narcissa are forced to work together to protect their interests. Another could be that the contract has some sort of magical binding that forces them to get closer. This leads to an unexpected emotional connection between them. For example, they might start to care for each other while trying to figure out how to deal with the contract.
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.
A possible plot twist could be that the marriage contract was actually forged by a dark wizard to gain control over Harry. So, when they start to discover this, they have to fight against the dark wizard's plans while also dealing with their growing feelings for each other.
One possible plotline could be that in a post - war world, Narcissa and Harry find themselves drawn to each other through mutual understanding. Maybe Harry sees a different side of Narcissa that was hidden during the war, and they start to build a relationship from there that leads to marriage.
One possible plot could be that the marriage contract was made by their families long ago without their knowledge. Harry might initially be resistant as he has feelings for others, like Ginny. But as he gets to know Morag, he discovers she's not what he expected and they form an unexpected bond.
He'd probably be shocked. Harry has always been a bit independent when it comes to relationships. He might feel trapped at first.
One possible plotline could be that Harry is raised in the Malfoy Manor. This would give him a very different upbringing compared to his life with the Dursleys. He might be taught different values and magic from a young age.
The domination of Harry Potter in such fanfiction can attract more readers. Since Harry is so popular, fans who love Harry are more likely to read fanfictions where he is the dominant character. This can then expose more people to Narcissa as a character, and potentially increase the overall interest in fanfictions that involve her, even if the initial draw is Harry.
Well, a possible plotline might be that Harry saves Narcissa during a dangerous situation in the wizarding war. This act of heroism makes Narcissa see Harry in a new light, and he in turn is drawn to her vulnerability. As they interact more, their relationship blossoms. Or, it could be that they are brought together by some magical force or prophecy that they initially resist but eventually give in to their feelings.