Voldemort and his Death Eaters might see it as a sign of weakness or a strange Muggle - influenced fad. They could mock Harry for it, thinking that he's straying from his pure wizarding roots. However, this could also be a miscalculation on their part as Harry might use their underestimation to his advantage.
The Dementors might be affected in an unexpected way. Since the piercing is a new physical aspect of Harry, it could emit a different kind of energy or aura. This might either repel the Dementors because it's something new and foreign to them, or it could attract them in a strange way, thinking that Harry is somehow more vulnerable due to this change.
Draco Malfoy would probably be quick to make snide remarks. He might spread rumors about Harry in Hogwarts, saying that he's trying too hard to be different or that he's gone 'bad'. But Harry could turn the tables by showing that he doesn't care about Malfoy's opinion and that the piercing is just an expression of his own individuality.
Maybe he gets the lip piercing during his time away from Hogwarts, perhaps while exploring the wizarding underworld. It could be a symbol of his growing independence and his journey to discover a different side of himself. The piercing could also attract the attention of some dark wizards who see him as an easy target or a way to get to Dumbledore, leading to a whole new set of adventures.
The characters' reactions would be diverse. Harry, being the main character, would likely feel a great sense of responsibility. He'd have to face the judgment of both the wizarding community and the vampires. Hermione would be her usual studious self, looking for any precedents or magical knowledge to help. Ron would probably voice his concerns loudly, thinking it's a dangerous and strange situation. The vampire involved would have her own emotions, perhaps a mix of fear and hope for the future. And other vampires in the community could range from being supportive to being hostile depending on their beliefs and positions within the vampire hierarchy.
Dumbledore would likely view it as another sign of Harry's individuality. He would see it as Harry growing up and making his own choices, as long as it doesn't interfere with his destiny. Snape might sneer at it, thinking it's just another Gryffindor folly. But secretly, he might respect Harry's courage to do something different.
Hermione would be very concerned and would immediately start looking for a solution in the library. She'd be flipping through every magical book she could find, trying to figure out what spell or potion could reverse the effect. Ron would be a bit shocked at first but then would try to protect Harry as best he could. He might be a bit clumsy about it, like trying to keep Harry out of trouble in the Gryffindor common room. Dumbledore would likely be calm and observant. He'd probably already have some ideas about what's going on and would be subtly guiding the situation to ensure Harry's safety and the well - being of the wizarding world.
Well, Hermione would be the first to take action. She'd be using her extensive knowledge of magic to try and find a solution. She might even come up with some complex spells or potions to try and break the loop. Ron would be a bit more laid - back, but still worried. He'd be there for Harry, listening to him talk about his experiences in the loop each time. Luna would have some really interesting and out - of - the - box ideas. She might suggest things like looking for invisible time - bending creatures or using her own unique brand of magic to disrupt the loop. His friends would all come together, each bringing their own strengths, to try and get Harry out of this strange situation.
The wizarding community would likely be shocked. Given the long - standing separation between wizards and Muggles, this would be a major deviation from the norm. Some traditionalists might be outraged and demand that Harry be held accountable. However, there would also be those who would be more sympathetic, especially those who have always advocated for better relations between the two worlds.
He could be shocked. Maybe there are some fanfictions that take a very dark turn or have unexpected pairings that he never thought of. He'd probably need some time to process such strange ideas. And he might also be curious to see how far the creativity of the fans can go. He might even get some new ideas about his own life from reading some of the more imaginative fanfictions.
Voldemort might be initially thrown off by Harry's change. He may see Harry as a less threatening figure if he becomes a girl, thinking that the 'chosen one' prophecy might not apply in the same way. But then he could also see Harry as an even more interesting target, as a female 'chosen one' would be something new and unexpected in his view of the wizarding world's power dynamics.
At first, his friends would be shocked. Hermione might think it's some kind of dark magic at first glance. But as Harry shows them what he can do, she would start to analyze it scientifically. Ron would be more awed. He'd be like a kid seeing a new cool trick. They would both support Harry in exploring this new ability, but also be a bit cautious as they don't fully understand where it comes from or what the implications are in their wizarding world.
His friends would be very surprised. Hermione would probably be a bit skeptical at first. She'd want to research all about Witchers before she fully supported Harry's new interest. Ron, on the other hand, might be more excited. He'd see it as another adventure and would be eager to hear all about the Witcher world from Harry.