There could be some of the house - elves that Harry has freed. They might choose to live on the island, using their magic to help with various tasks such as farming magical plants or taking care of the island's infrastructure. Also, some of the students from Hogwarts who were inspired by Harry could be there. They might be learning new forms of magic that are specific to the island or studying the unique magical ecosystem there.
The fanfiction could be about Harry turning the island into a sanctuary for magical creatures. He might find some endangered or mistreated magical creatures and bring them to the island to live in peace. He'd then have to deal with the challenges of taking care of them all, like finding food sources and creating habitats suitable for each species.
Dumbledore could be a character in the fanfiction. Maybe he knew about the island all along and left it to Harry in his will. Or he could be a guiding spirit for Harry as he figures out what to do with the island.
He might have discovered the island during one of his adventures and claimed it as his own. Since there was no one else on the island at the time, and he was the first to set foot on it and recognize its potential, he decided to make it his property.
Perhaps it's an island with a hidden wizarding school, similar to Hogwarts but with its own distinct features. There might be ancient spells protecting the island, and the architecture could be a blend of different magical styles. Harry could have discovered this island during one of his adventures and decided to make it his own. He might use it as a sanctuary for those in need or as a place to study and preserve rare magic.
Perhaps he uses the island as a secret training ground. He could practice advanced spells away from the prying eyes of Hogwarts faculty and students. Harry might also build his own magical fortress on the island for protection and privacy.
In this fanfic, perhaps Harry could turn the island into a magical sanctuary for endangered magical creatures. He might build a school there for young witches and wizards who are overlooked by the mainstream magical education system.
There's also a chance that Harry is a re - imagined version of an existing character within the same universe as LexCorp. The author might have given him a new backstory and set of circumstances that led to him owning LexCorp. For instance, he could be a former employee who had a grudge and through a series of events, ended up as the owner.
It might imply that within the context of a fanfiction community, Harry is the one who has the rights or is seen as the originator of the Luna - related fanfiction. For example, he could have written it or commissioned it, thus 'owning' it in that sense.
Most official and well - respected fanfiction platforms would not allow such a 'Harry Potter owns Hermione' lemon fanfiction due to their content policies. Fanfiction should be about exploring the world of 'Harry Potter' in a creative yet appropriate way, like developing new magical adventures or deepening the friendships in the story.