Well, in these desperate times in Harry Potter fanfics, the characters' personalities can be both strengthened and distorted. Harry might become more brooding and withdrawn as he shoulders the burden of the situation. Hermione's determination could turn into an almost obsessive drive to find solutions, sometimes at the cost of her own well - being. And Ron could experience a crisis of confidence that makes him question his place in the fight. But overall, these desperate times also offer opportunities for them to discover new aspects of themselves and their magic, as they are forced to dig deep and use every resource at their disposal.
In Harry Potter fanfic, characters can be deeply affected by the Mind Arts. For instance, if a character is subjected to Legilimency against their will, it could lead to a loss of privacy and a sense of violation. On the other hand, if a character masters Occlumency, it can give them a sense of power and control over their own mind.
Dumbledore would be devastated. He had placed so much hope in Harry as the one to defeat Voldemort. He would likely feel a great sense of guilt for not being able to protect Harry. The Weasley family, especially Ron, would grow up without their friend. Ron might be more subdued, lacking the adventures and growth that came from being Harry's friend. Hermione would also be affected. She might become more withdrawn, as she had found in Harry a kindred spirit in the pursuit of knowledge and justice. Without Harry, the Hogwarts students would also lack that symbol of hope and resistance against the dark arts.
One common plot twist is the revelation of a hidden power within a minor character. For example, a previously overlooked Hufflepuff student might turn out to have a powerful ancient magic that could turn the tide in the desperate situation. Another is the betrayal of a seemingly loyal character. Maybe someone from the Order of Phoenix is secretly working for the other side. And sometimes, there's a discovery of a new prophecy that changes everything the characters thought they knew about the battle against the dark forces.
The fandom would be divided. Some fans who are deeply into fanfiction would be disappointed and might feel like a part of their connection to the 'Harry Potter' world has been cut off. However, others who are more focused on the official works might not be as affected. There would likely be a decrease in the variety of fan - created stories, which could limit the creative exploration within the fandom.
Dumbledore would also be affected. As a mentor - like figure to Harry, he has certain expectations and plans for Harry. If Harry stops caring, Dumbledore's grand schemes against Voldemort might be derailed. He would have to find a new way to motivate Harry or adjust his strategies.
It would completely change the nature of the story. Harry Potter is seen as a hero, and this act would make him a villain. It would be a huge deviation from the original story's positive values.
Hermione and Harry are the central figures. However, other characters like Ron also get affected. Ron's relationship with Hermione and Harry is put to the test because of this law. He might feel jealous or left behind. Also, characters like Dumbledore or Snape (if the fanfic includes them in this context) could play roles in either supporting or opposing the law which in turn affects Hermione and Harry.
The other students at Hogwarts would also be affected. For example, Neville, who looks up to Harry. If Harry ignores everyone, Neville might feel lost. Ginny, who has a special connection with Harry, would be deeply hurt. And the teachers like Snape, who has a complex relationship with Harry, would also be impacted. Snape might be secretly glad at first, but then realize that Harry's isolation could be a sign of a bigger problem in the wizarding world.
The Death Eaters themselves would be affected in an interesting way. Some might welcome Harry with open arms, but others might be suspicious of his sudden change of sides. They might fear that it's a trick by the Order. And within Hogwarts, the students would be in turmoil. Those who idolized Harry would be heartbroken and confused, and there could be a split among the student body depending on who believes Harry's new stance.
For Tom Riddle, his Alpha personality could lead to him being even more ruthless. He'd use his Alpha - like charisma to gain followers more easily. Harry Potter, as an Omega, could develop a more empathetic side. He might be more in tune with the emotions of others around him. This could either be a weakness that Tom tries to exploit or a strength that Harry uses to his advantage, like understanding the true motives of his enemies better.