Maybe Harry discovers a new spell or charm that specifically targets the dementors' essence. In the fanfiction world, the author could give Harry an edge by having him stumble upon an ancient spell that no one has used for centuries. This spell, when cast, breaks down the very fabric of the dementors' existence and destroys them.
Well, in some fanfictions, Harry might use a super - powered Patronus. His Patronus could be stronger than usual, perhaps due to some newfound magic or a special connection he has developed. It could be so powerful that it simply overpowers the dementors and destroys them.
In the fanfiction, it could be that Harry uncovers a weakness of the dementors that is not known in the original books. For example, he might find out that they are vulnerable to a certain type of magical energy. Harry then figures out a way to generate or direct this energy towards the dementors, which ultimately results in their destruction. He could use his own unique magical abilities, combined with his friends' help and some clever planning, to carry out this task.
Well, it could be that in this fanfic, Harry has some sort of special artifact or weapon. For example, he might find an ancient magical object that has the power to vanquish dementors. He figures out how to use it and thus is able to kill the dementors. It could also be that he has made a special connection with some magical being or force that gives him the strength to take on the dementors in a more lethal way.
It's often described as an icy - cold and terrifying experience. The Dementors are usually depicted as hovering over the female Harry Potter character, their hooded forms menacing. The Kiss itself might be described as a sort of draining sensation, like all the warmth and hope being sucked out of her.
In many fanfictions, Dementors are used as a tool to create a sense of despair. For example, when a character is facing a Dementor, their worst memories are brought to the surface, and this can be used to develop the character further. The fanfictions might also show how different characters react to the Dementors in different ways. Some might be paralyzed with fear, while others might try to fight back using magic like the Patronus charm.
One possible consequence is that the wizarding world might see Harry as a hero even more than before. After all, dementors are very dangerous creatures, and if he manages to destroy them, it's a huge accomplishment.
One way is through group support. If characters are together, they can draw strength from each other. For example, Hermione could use her knowledge to come up with a plan. Ron could offer his loyalty and courage. And they could all hold hands and face the Dementors together. Also, they might find some magical artifacts that can help, like a special amulet that gives them a sense of calm when Dementors are near.
In fanfiction, dementors often serve as a source of great danger. For example, in many stories, they are used by dark wizards to guard important or secret places. Their ability to suck out the soul makes them a terrifying obstacle for the heroes to overcome.
They could be portrayed as having a bit of good in them. For example, they might be under some sort of dark spell that forces them to act as they do, and if that spell is broken, they could be more like guardians of the wizarding world in a different way.
It could also be due to his own inner strength and growth as a wizard. Harry has faced so many challenges and traumas throughout his life. His experiences might have awakened a latent power within him that allows him to control dementors. His strong willpower and determination, which have been developed over years of fighting against the dark forces, could be the key factor in this newfound ability.
If Harry Potter was kissed by dementors in fanfiction, the whole story would take a different path. Since Harry is the central character, his absence due to the Dementor's Kiss would mean that the prophecy related to him would seem unfulfillable. Hermione and Ron would likely become the main protagonists, but they would be facing a much more difficult situation without Harry's unique abilities and connection to Voldemort. Also, Hogwarts itself might lose its hope as Harry was seen as a symbol of hope against the dark forces.
One possibility is that Harry would grow up to be a very different person. Dementors are creatures of despair, so he might be more withdrawn and less trusting. He could also have some very dark powers, having been exposed to the dementors' influence for so long.