Harry would probably become more conflicted. His views on good and evil would be severely tested. Hermione might become more cunning as she tries to outwit Voldemort while living under his roof. Voldemort himself might develop a strange sort of attachment to them, which could make his actions even more unpredictable.
At first, it would probably be very tense. Harry would be suspicious of Voldemort's motives, and Voldemort would be cautious of Harry's potential to rebel. But as time goes on, they might develop a strange sort of understanding. Harry could start to see Voldemort as more than just a pure evil figure, and Voldemort might start to view Harry as something more than an enemy.
In such a fanfic, it would be a very strange and dark twist. Voldemort might use Harry and Hermione to gain more power in a different way. Maybe he wants to corrupt them and turn them against Dumbledore and the Order. He could also try to use their knowledge, especially Hermione's vast magical knowledge, for his own evil plans.
Often, Voldemort starts as this purely evil figure. But when he adopts Harry, he begins to show some unexpected softness. For example, he might start to protect Harry from other threats, which is very different from his usual self.
Well, one possibility could be that Voldemort adopts Harry as a way to control the wizarding world. He might think that by having Harry on his side, the resistance against him will crumble. Another could be that Voldemort discovers some sort of connection between him and Harry that makes him want to take Harry under his wing, perhaps related to some long - forgotten prophecy.
Harry would be more open to dark magic. Since Voldemort is his adoptive father, he would be exposed to different aspects of magic earlier. He might not have the same fear of the dark side as in the original story. For example, he could be more confident in using spells that are considered dark but for good reasons, like using the Imperius Curse to stop a criminal.
At first, it would be extremely tense and full of suspicion. Harry would be very wary of Voldemort's motives for protecting him. Voldemort, on the other hand, might be impatient with Harry's lack of trust.
At first, it would be really rocky. Harry has a history of distrusting Snape, and Hermione might be a bit cautious too. But as time passes, Snape's care for them in his own strict way would start to show. He'd probably be tough on them about their studies, but they'd see it's because he wants them to succeed.
Yes, there are some fanfictions with this concept. It's an interesting take on the Harry Potter universe as it flips the typical relationship between Harry and Voldemort. In these fanfictions, the story often explores how Voldemort's actions change when he takes on the role of an adoptive figure to Harry, who has been abused. It can lead to some really unique character developments and plot twists.
Harry might become more conflicted. He'd be exposed to Grindelwald's ideas which could make him question the black - and - white view of good and evil he had before. His confidence could waver as he's no longer in the familiar Hogwarts environment.
Hermione, on the other hand, could become more confident in her leadership skills. In the post - war fanfic, she may take on more responsibilities in the wizarding community. With Harry by her side, she realizes that she can make a real difference. Her character grows from being the brains behind Harry's operations to a leader in her own right. She also becomes more open - minded about different ways of magic, as she and Harry explore new areas of the wizarding world together.