Hermione might struggle with her identity. She has been a strong advocate for the rights of Muggle - borns, and now finding out she's related to a pure - blood supremacist like Lucius could cause an internal conflict.
There could be a lot of drama within the Malfoy family. Narcissa might have mixed feelings about Hermione. Draco could also be in a difficult situation, having to accept Hermione as his sister. Hermione herself might try to use her new position to influence the Malfoy family's views on Muggle - borns. She could try to reform the family from the inside, while also dealing with the judgment from her friends who knew her as a Muggle - born witch.
For Hermione, she could develop a more complex view of the wizarding world. Instead of just seeing Slytherins as the enemy, she would be part of a Slytherin family. This could lead to her being more diplomatic and better at understanding different perspectives. Draco, on the other hand, could become more open - minded. He would see Hermione's success at Hogwarts, which is based on her hard work and not just pure blood, and he might start to change his ways. Maybe he would even join Hermione in fighting against Voldemort instead of being on the fence or on the wrong side.
Hermione herself would also develop. With the support of two former adversaries, she might gain more confidence in dealing with the pure - blood elite. She could learn to trust them and in turn, teach them things about the Muggle - born perspective. This triangular relationship could lead to all three characters growing in unexpected ways.
Hermione might develop a stronger sense of loyalty towards her family's name. As Sirius was from the Black family, she would want to uphold the family honor, which was previously tarnished. So she could be more protective of her family's legacy in the wizarding world.
Harry might become more understanding of the Slytherin side. Lucius could start to question his loyalty to the Dark Lord. For example, Harry's influence could make Lucius see the harm in Voldemort's actions.
Her character might develop in a way that she constantly tries to prove herself. Because of her parents' polar - opposite reputations, she would feel the need to show that she is not defined by their actions or reputations. She could excel in both academics and magic - related sports, like Quidditch, to gain respect.
The potential dynamics are fascinating. Draco and Lucius have a father - son relationship. Lucius might see Hermione as a way to control or influence Draco, or he could genuinely be attracted to her. Draco, who has his own growing feelings for Hermione, would be furious at his father's interference. Hermione, caught in the middle, would have to navigate not only her feelings for both but also the power play between the two Malfoys.
One possible plot development could be the aftermath of the one - night stand. Hermione might be filled with guilt and confusion, given her values and the fact that Lucius is on the 'enemy' side. Lucius, on the other hand, could be intrigued by Hermione's different nature and try to draw her further into his world, leading to a battle of wills between them.
Perhaps Draco and Lucius find Hermione after she's been attacked by some dark creatures. Lucius might be more interested in using her injury to his advantage in the wizarding politics. But Draco, who has always had a bit of a soft spot for Hermione's intelligence and bravery, secretly tries to nurse her back to health. As Hermione recovers, she manages to outwit Lucius and also makes Draco question his family's allegiance to the Dark Lord.
One potential storyline could be Hermione's discovery of her true heritage. She might start noticing strange similarities between herself and the Notts, or find some hidden family heirlooms. This could lead to a journey of self - discovery as she tries to figure out why she was kept away from her true family. Another storyline could involve the reaction of her friends, especially Harry and Ron. They might be initially shocked and skeptical, but then support Hermione as she delves deeper into her past. The Notts, on the other hand, could be conflicted about accepting Hermione, especially if they have different beliefs or values.
In this type of fanfiction, Harry could develop a new sense of respect for his enemies. Meeting Lucius face - to - face might make him realize that even the most despicable characters have their own motives and insecurities. As for Lucius, he might be forced to re - evaluate his view of Harry. He may start to see Harry not just as a troublemaker, but as a real threat to his way of life. This could lead to him taking more extreme measures against Harry or, in a different turn, trying to co - opt Harry into his schemes.