In the fanfiction, their relationship could change due to external factors. For example, if there was a threat to the wizarding world, they would be forced to rely on each other. Harry's courage and Narcissa's cunning could combine to face the danger. This shared experience could transform their relationship from one of cold formality to a deeper, more trusting bond.
At first, it would likely be very strained. Harry has a history of conflict with the Malfoys, and Narcissa is a Malfoy. But over time, they might start to communicate more. They could find that they both have a love for the wizarding world's history and start sharing stories. This could lead to a more amicable relationship.
Their relationship might change as they get to know each other on a personal level. Harry could learn about Narcissa's fears and insecurities, especially regarding her family's reputation. Narcissa could see Harry's kindness and his desire to do good. They might start to care for each other in a way that neither expected, perhaps even falling in love, as they realize that they are more than just pawns in an arranged marriage.
Well, one possible plot could be that at first Harry is extremely resistant. He has his own ideas about love and marriage, especially considering his past with the Malfoy family. But as time goes by, he starts to see Narcissa in a different light. Maybe he realizes she's not as bad as he thought and they gradually build a relationship based on mutual understanding.
Narcissa might be very angry with Harry's abusers. If it's the Dursleys, she could use magic to give them a taste of their own medicine, but in a more subtle way so as not to draw too much attention. For example, she might make their houseplants grow out of control or cause their food to spoil every time they're mean to Harry.
Their relationship might start with mutual suspicion. Hermione, being a Muggle - born, would be cautious of Narcissa's pure - blood background. Narcissa, in turn, would be wary of Hermione's 'radical' ideas. But as they spend more time together, they could start to see the good in each other. For example, Hermione could admire Narcissa's elegance and grace, while Narcissa could be impressed by Hermione's intelligence and determination.
If they got married, it would be a relationship full of challenges and growth. Initially, there would be a lot of distrust from both sides. Harry would be wary of Narcissa's past associations, and Narcissa would be unsure about Harry's true intentions towards her and her family. But as time passed, they would start to understand each other better. They might have quiet evenings at home, sharing stories of their pasts - Harry about his time at Hogwarts and his battles, and Narcissa about her life in the Malfoy Manor. Their relationship would be a blend of love, respect, and a shared determination to make a new life together in a world that might not accept them easily.
In some fem Harry Potter fanfics, Narcissa can become more of a protector. For instance, if the story involves a female Harry Potter who is in danger, Narcissa might step up in ways she didn't in the original series. She could be more assertive in using her influence within the Death Eater circles to safeguard Harry.
Let's consider the relationship with Voldemort. In this fanfiction, Voldemort might see Fem Harry as a way to get to Narcissa or use her as a pawn in some way. But Fem Harry, with Narcissa's influence, could be more prepared to face him. Her relationship with the Order of the Phoenix would also be altered. Some members might be distrustful of her new family situation, while others might see it as an opportunity to gather intelligence from the inside. And Narcissa herself would have a very maternal relationship with Fem Harry, which would be a huge change from Harry's original lonely and often - unloved state in the canon story.
Often, it's portrayed as a relationship full of tension. Harry is the hero of the wizarding world who fought against Voldemort, and Narcissa was on the side of the Death Eaters. But in fanfic, this can be flipped. Some portray Narcissa as secretly admiring Harry's courage, which could lead to a strange, unspoken respect between them.
In some fanfics, Harry and Narcissa might have a complex relationship. It could start from a place of mutual wariness given their different allegiances in the original story. However, some fanfic writers might explore a more nuanced relationship where they find common ground, perhaps in their love for Draco. Narcissa's maternal instincts could lead her to see Harry in a different light over time, especially if she realizes his role in saving Draco.
At first, their relationship would likely be very strained. Harry has a long - standing feud with the Malfoys, and Draco has been his rival for years. However, as they are forced to spend time together, they might start to see each other in a new light. They could gradually develop a grudging respect for one another.
One interesting plotline could be how they deal with the reactions from their respective families. For example, Harry's friends might be shocked as Narcissa is from a Death Eater family. Another could be how they navigate the wizarding society together, perhaps changing the perception of Slytherins and Gryffindors getting along. Also, it might involve them working together to protect Draco, as Harry has a sense of justice and Narcissa wants to keep her son safe.