A Changed Man

This is a Harry Potter Fic-currently, no pairing of any kind.
During the Battle of Hogwarts, a mistake happens. Neville slipped on some blood and missed taking Naginis's head. The snake smothered him and dragged him away. Everything else went as it was supposed to, but in the end, when they couldn't find Nevil or the snake - Harry, Ron, and Hermione made a fuss about it, but no one would believe that The Darkest Wizard in the World would place one of his soul pieces inside a snake. An animal, an inferior creature, the three were shushed.
They made a fuss of it for a long while, but nothing happened for a while, and during that time, They were shunned for being attention seekers, while that one stopped Ron and Hermione as they tried their best to move on. But Harry kept at it and was deemed insane by several publishing agencies and healers.
Harry seemingly disappeared after that. He took all his assets from Gringotts and hid so profoundly that no one would find him.
Exactly five years after the war, it happened overnight. The Ministry was overtaken so quietly that no one even knew the next day, and suddenly one Neville Longbottom was Minister of Magic.
Many people ran after realising that Harry, Ron and Hermione had told the truth.
No one knew where Harry was, and no one could find him. No spell could track him. No letter reached him. Even his name had begun fading from their minds. Only those who truly loved him still remembered him.
This is where the story starts.
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All I own is the story and, in some way, the personality of these characters. Everything else belongs to J. K. Rowling.
If you are asking why I own the personality, then the character I create is not the copy of Harry Potter we know of the books, nor are the other characters. Instead, they are what I picture and how I place them.
Art also does not mind... mostly found on Pinterest.