Well, in this fanfiction, Harry might face different challenges compared to the original story. Since he lives on his own, he could have to deal with things like getting his own food and supplies in the wizarding world. He may also form new relationships with more marginal characters as he is no longer part of the main Hogwarts crowd. This could lead to some really unique plotlines.
Another plot could be that Harry, while living alone, stumbles upon a mystery in his own neighborhood. He starts to investigate it secretly and uncovers a conspiracy within the wizarding community that could potentially change the whole magical world. He has to use his wits and the skills he has learned over the years to solve the mystery and save the day.
It means that Harry Potter's character continues to exist and develop in the world created by fanfiction writers. Fanfiction allows fans to explore different scenarios and storylines for Harry that may not be in the original books or movies.
Another concept might be how Harry deals with loneliness. In the fanfiction, he may have to face his inner demons alone. This could lead to him becoming more self - reliant and developing a stronger sense of self. He might also form new and unexpected alliances as he tries to navigate the wizarding world on his own.
There could be a local wizard who becomes Harry's mentor in a way. Since Harry is on his own, he might seek guidance from someone outside of his usual circle, like an old hermit - like wizard who has a lot of knowledge about the more hidden parts of the wizarding world.
One interesting aspect could be how Harry tames the dragons. Maybe he uses his magic in unique ways to communicate with them and gain their trust.
Obviously, Harry Potter is the main character since it's about him living on his own.
One interesting aspect could be the exploration of Harry's character from a new perspective. In many 'Harry Potter His Own Side' fanfictions, we might see his internal thoughts and feelings in more depth than in the original books. For example, how he really coped with the pressure of being 'the Chosen One' without always showing it to his friends.
One idea could be Harry going on a solo adventure to discover more about his family's past. He could travel to places his parents were known to have visited. Another could be Harry having to face a new dark wizard all by himself without the support of his friends, relying solely on his own skills and the magic he has learned over the years.
One possible plot point could be how Harry manages to exist in a time - loop scenario that makes him his own father. Maybe there are complex spells involved that warp time and genetics in a magical way.
In this fanfiction, perhaps the concept of Harry being on 'his own side' means he doesn't fully align with the traditional groups in the Harry Potter universe like the Order of the Phoenix or Hogwarts faculty. He could be making his own decisions based on his own moral code, which could lead to some really different storylines. For instance, he might choose to deal with the Death Eaters in a more unorthodox way.