Maybe Harry meets a group of magical creatures' protectors in Japan. They are dedicated to protecting the unique magical creatures in Japan, and Harry joins them in their adventures, learning a great deal about Japanese magical fauna along the way.
Well, it could be about Harry going to Japan for a magical exchange program. Maybe he meets new wizards there, discovers unique Japanese magical creatures, and learns different types of magic that are specific to Japan.
A new character could be an old and wise sensei - like wizard, Master Takeshi. He teaches Harry about the ancient Japanese magic arts. And there might be a group of mischievous students, like Hiro, Yuki, and Ryu, who at first give Harry a hard time but later become his friends.
One possible plot could be that Harry discovers a hidden magical school in Japan. He has to adapt to the new culture and magic system there. Maybe he meets new friends who teach him about Japanese magical traditions and spells.
In this fanfiction, Harry might meet students from various backgrounds. There could be students from far - off magical lands who have their own unique cultures and magic. He could also run into some Beubaxtons alumni who come back to visit and they might share some interesting stories or give him some advice on how to make the most of his time at Beubaxtons.
He could meet his future self. This would be a very interesting encounter as he could learn from his future self about what he has accomplished and what mistakes he should avoid. He might also meet the future generations of his family, like his grandchildren or great - grandchildren.
Perhaps Harry will run into an old wizard who has been in the hospital for a long time. This wizard has a lot of stories about the old days of the wizarding world and gives Harry some valuable advice.
Maybe he'll run into a group of young witches and wizards who are on an adventure of their own. They might team up with Harry and together they explore the new country. There could also be a wise old witch who lives in a secluded magical cottage and gives Harry some valuable advice about the country's magic and its history.
He could meet other Hogwarts students. They might be shopping for the same event or just casually browsing. It would be fun to see him interact with Hermione and Ron in a non - school - related setting like a clothes shop.
In this fanfiction, Harry could meet ancient Aztec spirits that have been bound to the temple for centuries. Also, there may be other adventurers or treasure hunters who are also exploring the temple. They could either be friends or foes to Harry. Additionally, he might encounter descendants of the Aztec people who still hold some knowledge of the temple's magic and secrets, and they could either assist him or try to stop him depending on their motives.
He could meet his parents, James and Lily Potter. They were important figures in his life even though he never really got to know them. Their presence would surely be comforting and they might offer him some words of wisdom.