It could start with Harry being found by a Hetalia - inspired character or family. Maybe he's discovered in an alley in a world where Hetalia and Harry Potter elements co - exist, and this new family decides to raise him.
Perhaps the story begins with a magical accident that transports baby Harry to a Hetalia - like world. There, he's taken in by a group of characters who are intrigued by his magical abilities. They then start to raise him, teaching him their ways while also trying to understand his magic. As he grows, he starts to blend the two very different worlds together in his personality and actions.
It would likely be a wild mix of magic and Hetalia's unique brand of humor and world - building. Harry might attend Hogwarts with a new set of values instilled in him from the Hetalia fanfiction. His relationships with his friends could be different too. Instead of the typical Hogwarts rivalries, he might approach conflicts with the more diplomatic or comical ways often seen in Hetalia.
It could start with Harry being found as a baby in Rome. Maybe a Roman wizard family takes him in. They notice his special powers right away and start to train him in their ways.
Perhaps the start of the fanfic could be that Voldemort's final curse on Harry backfires in a strange way due to some ancient magic. Instead of just leaving a scar, it sends Harry through a portal to Panem. He lands in the Capitol, where he's immediately seen as an oddity. But before the Capitol can fully study him, he manages to escape and finds himself in a district. There, he begins his journey of growing up in Panem, with his wizarding skills gradually emerging as he faces the hardships of this new world.
Well, in this fanfiction scenario, the very essence of Harry Potter's character would be different. His upbringing by the Joker would mean that his understanding of good and evil is blurred. He might see the wizarding world as a playground for his own brand of chaos. His friends from the original story might become his enemies or he might not have any friends at all. The fight against Voldemort would no longer be a central theme. Instead, Harry could be creating his own brand of mayhem. His magical powers could be used in ways that are not in line with the traditional use of magic in the wizarding world. It would be a completely different kind of story, one that is full of dark humor, chaos, and a lack of the moral foundation that the original Harry Potter series is built upon.
The plot could start with Harry escaping the Dursleys earlier than in the original. He then roams around, trying to find a place to belong. He might stumble upon some hidden magical secrets in the Muggle world that are related to his parents. As he grows, he starts to attract the attention of both good and bad wizards. Some might want to help him, while others see him as a threat because he's an unknown factor, not following the normal wizard upbringing.
The plot could start with Harry being found by a samurai clan. He'd grow up learning their ways. Then, when he discovers his magical heritage, he has to blend the two worlds. Maybe he uses samurai skills to fight dark wizards.
In this fanfiction, the plot might revolve around Harry's struggle to balance Kreacher's teachings with the values of the wider wizarding world. He could face discrimination from other wizards who are suspicious of his upbringing. Meanwhile, Voldemort might see Harry as an even greater threat because he's been raised by Kreacher. Kreacher, being protective, tries to shield Harry from the Dark Lord, but Harry realizes he has to take a stand. This could lead to a series of battles and adventures where Harry has to prove himself not just as a wizard, but as a person with his own set of beliefs.
In terms of relationships, it would be different. In the original, Harry has his core group of friends like Ron and Hermione. But if raised by a Sherlock Holmes fan, he might be more distant or more selective in his friendships. He could view his relationships more like alliances to solve problems, similar to how Sherlock has Dr. Watson as an assistant. Also, his relationship with the teachers might be more of a peer - to - peer investigation relationship rather than a traditional student - teacher one.
The plot could involve the trio being transferred to Hogwarts as part of an exchange program between their world and the wizarding world. At Hogwarts, they face challenges like dealing with the strict rules of the school, which are very different from what they are used to in Hetalia. They also have to learn how to play Quidditch, which is a completely new sport for them.
Well, it could involve Harry growing up with the Delacour family's unique culture. Maybe he'd learn different kinds of magic that the Delacours are known for. He might also have a different personality, influenced by their flamboyant and refined ways.