Ron could also take on the role of the main character. He has his own brand of courage and loyalty. He could be the one who, in a moment of desperation, unlocks the power that is Voldemort's bane. For example, he might use his family's old magic artifacts in a new and unexpected way.
One interesting plot could be the discovery of a new magic that is the true bane of Voldemort. This magic might be something that has been long forgotten in the wizarding world and Harry stumbles upon it during his quest to finally defeat Voldemort.
Harry could become more powerful in a way that scares his friends. Voldemort's training might focus on the Dark Arts, which are powerful but dangerous. This could change Harry's magic style. He may become more solitary as his new skills and knowledge set him apart from his Hogwarts friends who follow a more traditional path of magic.
Harry in this fanfiction is likely to be more ruthless. Voldemort's upbringing would make him less empathetic. He may value power above all else and be more willing to use dark magic to achieve his goals. His relationships would also be different. He wouldn't have the same close - knit group of friends as in the original story. Instead, he might be surrounded by Death Eaters or those who follow Voldemort's ideology.
The Weasley family in general would be involved. Ginny, for instance, would be heartbroken seeing Harry on Voldemort's side. The family's loyalty to Harry would be put to the test, and they would be among the main characters as they try to either bring Harry back or fight against him if he goes too far with Voldemort.
Hermione would be one of the main characters. She might be very skeptical at first about Harry's new friendship with Voldemort. She would constantly be on guard and try to figure out Voldemort's true intentions. Another would be Dumbledore. He would likely be watching the situation closely, trying to guide Harry and also be prepared to deal with Voldemort if he reverts to his evil ways.
In many fanfictions, Harry Potter squinting at Voldemort could be a sign of intense focus. It might be that Harry is trying to read Voldemort's next move, or perhaps he's looking for some sign of weakness. For example, in some stories, Harry's squinting could be related to his newfound magical abilities that he's using to analyze Voldemort's magic signature.
It's possible. In the realm of fanfiction, the imagination knows no bounds. Writers might come up with such a scenario for various reasons, perhaps to explore a different side of the characters' relationships. But it's not a common or mainstream concept within the Harry Potter fanfiction community, as it goes against the typical character dynamics we expect from the series.
There are a lot of Harry Potter doujinshi that you can refer to: 1 Harry Potter and Defense Against the Dark Arts: This is a very popular Harry Potter fanfiction about the confrontation between Harry Potter and Voldemort in Defense Against the Dark Arts. 2 Harry Potter and the Goblet of Fire: This is another very popular Harry Potter fanfiction about the adventures of Harry Potter and Voldemort in the Goblet of Fire. 3 Harry Potter and the Prisoner of Azkaban: This is a darker Harry Potter fanfiction book that recounts Harry Potter's experiences in the Prisoner of Azkaban, including his confrontation with Voldemort. 4 Harry Potter and the Order of the Phoenix: This is another very popular Harry Potter fanfiction about Harry Potter's fight against Voldemort in the Order of the Phoenix to protect Hogwarts. 5 Harry Potter and the Half-Blood Prince: This is another heartwarming Harry Potter fanfiction about the reconciliation between Harry Potter and Voldemort in the Half-Blood Prince.
Most fans would be shocked. Since in the original story they are enemies. This kind of fanfiction completely subverts the traditional relationship between them.
It is not a common theme at all. The Harry Potter world is built around the conflict between Harry and Voldemort. Harry represents the side of good, and Voldemort is the ultimate evil. The idea of them being lovers goes completely against the nature of their characters as presented in J.K. Rowling's books. Fanfiction might sometimes take wild turns, but this is not a typical or widely - accepted concept.