The main characters might include some of the minor characters from the original series. For instance, Neville Longbottom could be one of the main characters. If he has a special kiss with a character, perhaps Luna Lovegood, it could change his confidence level and give him some new abilities or powers that then change the world. Also, it could be an older character like Dumbledore, if the fanfiction has a time - travel or magical - memory - related plot where a kiss from the past or future involving Dumbledore has a world - changing impact.
The main idea might be about how a kiss in the Harry Potter fanfiction world has the power to change the world. It could involve a romantic relationship between two characters, perhaps Harry and Hermione or some other pairing. And this kiss could be a turning point in a battle against evil, or it could change the social or magical fabric of the wizarding world.
Well, it's likely that Harry Potter himself is still a main character. His actions and decisions would probably be central to the story, especially with the twists and changes in the fanfiction.
Well, in many Harry Potter fanfics, even those named 'the change', the main characters often include Harry, Hermione, and Ron. However, depending on what the 'change' is about, new characters could be introduced or existing minor characters could be promoted to main character status. For example, if the change is about the Slytherin house becoming more inclusive, we might see Draco Malfoy taking on a more central role in the story, along with the usual trio.
There's no way to be certain without reading the 'kiss of a trator harry potter fanfic'. But it might center around minor characters who are turned into traitors in the fanfic writer's imagination. For example, a Hufflepuff student who becomes a traitor for some reason, and the kiss could be with another student from a different house. It could also involve characters from the Order of the Phoenix or Death Eaters, depending on how the story is crafted.
Well, obviously Harry Potter himself is a likely character. He could be having his first kiss with Ginny Weasley, as their relationship is a major part of the series. It could be a very romantic and magical moment in fanfiction, with all the elements of Hogwarts in the background.
It could also focus on some of the minor characters from the original series. For example, Neville could be a main character in this fanfic and his growth and change during the summer could be the main focus. Or Luna, with her unique perspective, could be in the center of all the happenings during that summer of change.
Harry Potter himself is surely important. He is the main character and the one going through the 'summer of change'.
Well, the main character could be a Muggle - born wizard who has always felt a bit out of place in the wizarding world. Traveling through the Harry Potter world would be their way of really understanding and finding their place in it. Or it could be a time - traveling character, perhaps a future wizard who comes back to the time of Harry Potter to study the magic of that era. They could get involved in various adventures during their travels. Also, a group of international exchange students could be the main characters. They would travel around the wizarding world, comparing and contrasting their different magical cultures.
Most likely, Harry Potter himself would be one of the main characters. He has a natural inclination for adventure and would be eager to explore the world on the train. Hermione Granger would also be there, with her vast knowledge of magic to help them out in different situations. Ron Weasley too, for his loyalty and friendship.
Obviously, Harry Potter himself would be the central character. He would be the one driving the story forward with his actions and decisions.