He'd likely have a tough time fitting in at first. Japanese schools often have a strict dress code, and his Hogwarts robes would surely stand out. He'd have to adapt to the Japanese curriculum, which could include things like calligraphy and Japanese history of magic. And the food! Japanese wizarding food might be very different from what he's used to at Hogwarts feasts. He might be introduced to magical creatures unique to Japanese mythology. Maybe he'd encounter a kitsune (fox spirit) and have to figure out how to interact with it, which would be a whole new experience compared to dealing with hippogriffs or thestrals.
Well, he might face a whole new set of magical rules. In Japanese schools in fanfiction, there could be different types of magic related to Japanese folklore. Harry would probably be very confused at first. For example, he's used to the European style of magic with wands and spells like 'Expelliarmus'. But in a Japanese school, there might be magic based on things like Shinto shrines or oni (demons). He'd have to learn new incantations and ways to use magic. Also, the social structure in a Japanese school could be different. There might be more respect for hierarchy, which is different from Hogwarts where students are a bit more equal in a way.
In a Japanese school in fanfiction, Harry Potter could make some interesting friends. Japanese students might be more reserved in their approach to friendship compared to his Hogwarts pals. He'd also be exposed to different forms of magical combat. Instead of just dueling with wands, there could be martial - arts - based magic battles. And the architecture of the school would be different. Instead of the Gothic style of Hogwarts, it could be more in line with traditional Japanese architecture, with sliding doors and tatami mats. This would change the whole atmosphere of his learning environment.
In such a fanfiction, he might encounter different magical creatures unique to Irish folklore. For example, he could come across the Banshee. The school in Ireland might also have its own set of magical traditions and spells that are different from Hogwarts. He would probably make new friends among the Irish students and learn about their magical heritage.
Well, he might make new friends. In a different school, there could be new magical traditions and spells for him to learn. He'd also face different challenges compared to Hogwarts.
Well, he'd probably be a bit of an outcast. I mean, he has all this knowledge of the wizarding world and magic. At Muggle school, that doesn't really count for much. He'd have to hide his identity as a wizard too. And think about the subjects - no Potions or Defense Against the Dark Arts. Instead, it's all Math, Science, and English. It would be a huge adjustment for him.
In a fanfiction where Harry Potter goes to Ouran High School, first of all, his clothes would be a point of interest. His Hogwarts robes would be so different from the fancy uniforms at Ouran. Harry would likely be curious about the Host Club. He might initially think it's some kind of magical society. His magical abilities could be used to help out around the school in a discreet way. For example, he could use a levitation charm to fix a broken chandelier. He'd also face the challenge of hiding his magic from most of the students and faculty, which would add an element of secrecy and mystery to his time at Ouran.
In fanfiction, if Harry Potter goes to Muggle high school, it could be a chance for him to grow in a different way. He'd have to rely on his non - magical skills. Maybe he'd make some really good Muggle friends who would accept him for who he is. He could introduce them to some of the less dangerous aspects of the wizarding world, like Bertie Bott's Every Flavor Beans. It would be a whole new adventure for him, away from the usual wizarding threats.
Well, he'd probably be really confused at first. I mean, Hogwarts is all about magic and Forks High School is a normal Muggle school. He might accidentally use magic when he's frustrated with a difficult class like Potions... I mean, Chemistry. And he'd surely stand out with his lightning - shaped scar.
In a fanfiction where Harry Potter goes to highschool, he would bring a whole new perspective. He's used to a world full of magic and mystery, and highschool would seem rather ordinary in comparison. However, his magical instincts could still come in handy. For example, he might be able to sense when someone is lying, just like he could sometimes sense the presence of dark magic. His relationships with teachers would be interesting too. Some might see him as a bit of an oddball, while others could recognize his special qualities.
Well, he might be really confused at first. Equestria is a very different world from the wizarding world he's used to. He'd probably be amazed by the magic there which is so different from his own. The ponies might be a bit scared of him initially, thinking he's some kind of strange new creature. But as time goes on, he could start to learn about their ways and maybe even use his wizarding skills to help out in Equestria.
Well, if Harry Potter goes to Neverland in fanfiction, it would be a wild adventure. Harry is used to the rules and magic of the wizarding world, but Neverland has its own unique brand of magic. He might find that his spells work differently there. And he'd probably meet Peter Pan, who has his own set of powers. The two could either become friends or rivals as they each have their own ideas about magic and heroism.
Well, he might use his magic in ways that Camelot has never seen. Maybe he'd help King Arthur with some tough battles using spells like Expelliarmus. He could also introduce the wizards' world to the knights, which would be really interesting.