Well, perhaps Harry could make new friends in the fifth house. He might discover some hidden secrets or unique magic that is specific to that house.
He could find himself in a situation where he has to prove himself in the fifth house. Since he's new there, the other students might be skeptical of him at first. But as he shows his skills and courage, he gains their respect. There could also be a mystery or a plot against the fifth house that Harry gets involved in, using his problem - solving skills to save the day.
There could be a group of students who are known for their pranks in the fifth house. Harry would probably cross paths with them and might either get involved in their antics or try to stop them. Another possibility is that he meets a shy student who has some special abilities but is too afraid to show them. Harry could be the one to encourage this student to come out of their shell.
Perhaps it's a former student who was never fully accepted in any of the four houses. They created the fifth house as a place for those who didn't fit in. This person would be very empathetic towards Harry's situation, having been through a similar experience. They would be strict but fair, teaching Harry and his housemates that being different is a strength, not a weakness.
In this fanfiction, Harry might see a world where magic has evolved in ways he couldn't imagine. Maybe there are new spells and potions that are far more advanced. He could also encounter the future versions of his friends and enemies. For example, he might find out that Ron has become a very important figure in the wizarding world, or that Voldemort's influence still lingers in some unexpected ways.
Well, perhaps Harry would be amazed by the different teaching styles at Beubaxtons. He might make new friends and learn new magic that Hogwarts doesn't teach.
Well, maybe Harry discovers some magical secrets in Salum. He could meet new and interesting characters there.
Well, he might visit some magical places that are not shown in the original books. For example, a hidden beach with mermaids and magical sea creatures. He could also meet some new characters who are on vacation as well, and they could have all kinds of adventures together, like exploring a mysterious forest filled with enchanted plants.
Maybe Harry is injured during a Quidditch match and has to be rushed to the hospital. There he might meet some interesting new characters, like a healer with a mysterious past.
Well, he might encounter some magical items that are only available in certain wizarding shops. Maybe he'll find a new type of wand core or a potion ingredient that's super rare.
In the fanfic, Harry might have a study session with Hermione. They could go through some old magic books, looking for answers to a mystery at Hogwarts. Maybe they'll find a new spell or a clue about a hidden part of the school's history.
Well, Harry could be really confused at first. Ouran is a very different world from Hogwarts. He might be shocked by the opulence of Ouran Academy and the strange club system there. Maybe he'd try to find a way to fit in while still being true to his wizard self.