The social norms in Japan would play a big role. Harry would likely be more reserved and polite in his interactions, as is the norm in Japanese society. His relationships with other wizards and witches would be shaped by concepts like 'wa' (harmony). His clothing might also be a blend of wizard robes and traditional Japanese attire. And the magic could be more in tune with nature, similar to Shinto beliefs, where natural elements are revered and magic is seen as a part of the natural order.
One aspect could be the integration of Japanese school systems. Instead of Hogwarts' houses, there might be something based on Japanese school clubs. For example, a Quidditch club could be modeled after a traditional Japanese sports club with strict hierarchies and training regimens. Also, Japanese mythology could seep in. Creatures from Japanese folklore like the Kitsune (fox spirit) could interact with the wizarding world, adding a whole new layer of magic and mystery.
In such a fanfiction, Harry would grow up in a completely different cultural setting. He might have different friends, perhaps those from traditional Japanese wizarding families. His upbringing could be influenced by Japanese values like respect for elders and harmony with nature. His clothing style might also be a blend of the wizarding robes and traditional Japanese garments. He could also face unique challenges like dealing with Japanese magical creatures that are different from those in the UK.
Well, Harry Potter's loyalty and friendship values could play a big role. Just like he has his friends in Hogwarts, he could form new friendships during his TARDIS adventures. His ability to face challenges head - on, which is a big part of his Gryffindor nature, would also be important. He might face challenges like dealing with time - paradoxes or hostile alien species. His knowledge of the wizarding world's history could also be relevant. For instance, if the TARDIS takes him to a time related to a magical event in the wizarding world's past, he could use his knowledge to make sense of the situation and perhaps even change things for the better.
One unique element could be the infusion of Chinese cultural values. For example, the concept of family and loyalty might be emphasized in a different way compared to the original. Also, the magic system could potentially incorporate some Chinese mythological elements, like the use of certain Chinese symbols or creatures in the magic.
One way is to have a Creepypasta - like curse befall Hogwarts. For instance, a curse that makes the staircases move in a truly chaotic and disorienting manner, similar to the unease that Creepypasta stories create. The students would have to navigate this new and scary situation, perhaps with some help from the teachers who are also baffled by this strange occurrence.
A unique way could be if a magical diaper is created that has special powers. Maybe it can fly like a broomstick or protect the wearer from dark magic. This would be a very different take on the normal use of a diaper in a story.
One possible plot could be that the Doctor, with his time - traveling abilities, rescues Harry from the Dursleys at a young age. He then takes Harry on adventures across time and space, teaching him about different cultures and magic from various planets. Harry might learn unique forms of magic that are different from what he would have learned at Hogwarts, and he could use these new skills to fight against threats in both the wizarding world and the Doctor's universe.
The unique aspect could be the new types of magic. Celestialsapiens might bring in magic related to the cosmos, like star - based spells or powers that are connected to celestial bodies. This would be very different from the traditional magic in Harry Potter.
Foxes could be part of a new magical species in the fanfiction. They could have their own language and culture within the wizarding world. For instance, they might live in a hidden part of the Forbidden Forest and have a special connection to nature magic that the main characters need to understand to defeat a new dark force. This would expand the world - building in the fanfiction.
Well, if Fem Harry Potter was raised in Japan, she might be trained in different forms of magic. Japanese magic could be more nature - based perhaps. She might learn to communicate with spirits in a more Shinto - like way. Also, her Hogwarts experience would be quite different. She could introduce some Japanese magical traditions to her classmates, like the art of origami magic where paper creations come to life.
He'd probably be more reserved and polite, as those are common traits in Japanese culture. His sense of honor might be more in line with the Japanese concept of 'bushido'.