Well, obviously, the relationship between the Potters and the Malfoys becomes extremely hostile. The Malfoys would see the Potters as thieves who stole Harry from them. For Harry, his view of the Potters might be initially one of confusion. He was with the Malfoys, and now he's with the Potters. But over time, he might come to see them as his true family.
In this fanfiction scenario, the relationship between Dumbledore and the Potters could be strained. Dumbledore might have had some sort of plan involving Harry and the Malfoys, and the Potters' kidnapping of Harry throws that plan into chaos. And for the Death Eaters, they might see the Potters as a bigger threat now. They could target the Potters more aggressively, not just because of their opposition to Voldemort, but also because of this act of taking Harry from the Malfoys.
One possible motive could be that the Potters discovered some dark plot by the Malfoys involving Harry. Maybe they found out that the Malfoys were planning to indoctrinate Harry into their pure - blood supremacist ideology against his will. So, to protect Harry from that, they kidnapped him.
He might change in terms of his magical abilities. Maybe the Malfoy family focuses on different types of magic than what Harry was exposed to in the original story. So, he could be more proficient in dark arts - adjacent magic, but also struggle with the moral implications of using such magic. He may have to reevaluate his own identity and what it means to be a 'good' wizard.
In fanfiction, Harry's understanding of the Potters can expand. He might see his parents as more complex characters. For instance, if a fanfic shows James Potter as having a struggle with a certain type of magic, it makes him more than just the heroic figure Harry knew. This changes Harry's view of his father.
It changes it a lot. We usually see Harry as a hero, but as a housewife, it's a different side. It makes us think about the domestic side of the wizarding world.
Well, their relationship is complex. In the beginning, Draco may try to bully Harry as he used to in Hogwarts. But as Harry shows his true self and they spend more time together, Draco realizes that Harry is not the enemy he thought. They might start sharing secrets, and their relationship could evolve into a sort of brotherly bond, where they protect each other from outside forces and also from the expectations of their respective 'sides' in the wizarding world.
If a character has the Dark Mark, their relationships with non - Death Eaters can become extremely strained. Friends may turn against them out of fear or a sense of moral obligation. For example, if a Gryffindor was marked, their former housemates might not trust them anymore.
In fanfiction, the invisibility cloak can create secrecy between characters. For example, if one character uses it to spy on another, it can lead to misunderstandings or new revelations about their relationship. It can also be a tool for characters to get closer without others knowing, like a secret meeting between two lovers.
His relationship with Ron and Hermione would be strained at first. Ron has always disliked Malfoy, so he'd be confused and a bit angry at Harry's newfound admiration. Hermione might be more open - minded, but still skeptical. She'd try to reason with Harry. With the Weasley family, they'd also be a bit taken aback. However, Harry's new view of Malfoy could potentially lead to a more peaceful co - existence between Gryffindor and Slytherin students in general.
He becomes more conflicted. Growing up as Lucius Malfoy's son, he is exposed to different values. So, instead of the Gryffindor - like straightforwardness, he may have a more calculating side.
Advanced technology can strengthen relationships. For example, if there are advanced communication devices, friends can stay in touch more easily. Harry could keep in closer contact with his friends at Hogwarts when he's away.