Other characters could be frightened themselves. If Hermione is screaming in a public area in the wizarding world, like the Great Hall at Hogwarts, it could cause panic among the students and teachers, and they might start to fear that there is a great danger approaching.
There could be characters who are more suspicious. Some might think that Hermione is overreacting or that she's faking it for some ulterior motive. This could lead to some conflict or misunderstanding within the story.
Some characters might immediately rush to her aid. Harry and Ron, for instance, would be very concerned and would do everything they could to figure out what was wrong and protect her from whatever was causing her distress.
Hermione is a very resourceful character. She would likely first try to hold it in while she figures out a proper solution. If she's in a public place like Hogwarts, she might look for a private corner or an empty classroom. She could also use her magic to create a temporary privacy shield if needed.
If it's an illness, they could search for a cure. Maybe there's a special herb or a magic spell in the world of the fanfic that can heal her. Her friends could go on a quest to find this cure, and in the process, there could be more character development and interesting plot twists.
Harry would probably be very confused at first. He knows Hermione is usually a rule - follower, so her wanting to be punished would seem out of the ordinary. He might try to talk her out of it, thinking there must be some misunderstanding. Ron, on the other hand, would be more straightforward. He'd likely say something like 'Hermione, you're mad!' and try to convince her that she doesn't deserve any punishment. The teachers, such as Professor McGonagall, would be taken aback as well. She would probably question Hermione carefully to understand her motives before deciding on any action.
Harry would be extremely shocked. He has always seen Snape as a complex figure, and Hermione capturing him would make him question a lot of things. He would likely try to get to the bottom of it and mediate between Hermione and Snape if possible.
The Weasley parents would have mixed feelings. Molly would be a bit hesitant as she had her own ideas about Bill's future with Fleur. Arthur, on the other hand, might be more open - minded and see the potential in Hermione and Bill's relationship. Their relationship could also cause a stir among the Hogwarts students who look up to Hermione, as it would be an unexpected pairing that challenges the normal relationships they are used to seeing.
The impact on Hinata would also be significant. She understands Naruto's sense of justice but would also be worried about the emotional toll it would take on him. She might try to comfort Naruto while also being conflicted about the whole situation. For the other ninja clans in Konoha, it could lead to internal disputes. Some clans might see Naruto's action as necessary for the safety of the village, while others might view it as a breach of the bond between comrades. And for the ninja world at large, it could change the power balance. Sasuke was a very powerful ninja, and his death at Naruto's hands could make other villages either fear Konoha more or see it as a place where even the closest friends can turn on each other.
For the other Gryffindor students, some might be afraid of Hermione. They've heard stories about Greyback and werewolves, and this could lead to a divide in the house. Some students would stand by Hermione, while others would keep their distance. The teachers would also have different reactions. Snape might be more critical, seeing it as a sign of Hermione's recklessness. But McGonagall would be more empathetic, trying to find ways to help Hermione manage her new situation. The Order of the Phoenix members would be concerned about Hermione being a potential target now. They might increase security around her, which would impact the overall secrecy and operations of the Order.
For Harry, it would be devastating. Hermione has been his rock, his intellectual equal. Without her, he would feel lost and incomplete. He might become more reckless in his fight against evil, as he no longer has her to rein him in.
Ron would probably be shocked. He always looks up to Hermione as the one who follows the rules. He might try to defend her at first, but then realize she was in the wrong. Harry, on the other hand, would be more understanding. He knows that sometimes there are more important things than just following the rules blindly.
Well, it could make some characters more wary of her. For example, those who are prejudiced against Parselmouths might view her with suspicion. However, it could also bring her closer to Harry, as he's the only other known Parselmouth among their group. They might bond over this unique ability and share their experiences related to it.