Harry's personality would be far more complex. Raised by Hel, he'd have a sense of detachment from the normal wizarding community. He might be more calculating, as he would have grown up in an environment where survival and power are highly valued. He wouldn't have the same sense of loyalty to Hogwarts or the wizarding world as a whole. Instead, he would be more focused on his own growth and understanding of the power he might possess, which could be a result of Hel's teachings.
If Harry was raised by Hel, his personality would be shaped by the Norse values that Hel represents. He would be more fatalistic, believing that fate has a large role to play in his life. He would be less idealistic compared to the Harry in the original series. His sense of right and wrong would be more fluid, as Hel's world view might not be as black and white as the one in the wizarding world. He would also be more self - reliant, as he would not have the support system that Hogwarts provides. He would view magic as a tool for more than just good deeds, but also as a means of self - preservation and power acquisition.
He'd be more reserved. Hel's influence would make him less likely to trust easily. He wouldn't have the same sunny disposition as he might have had if raised by the Dursleys and then influenced by Hogwarts. He'd be more attuned to the darker aspects of magic and life in general.
He'd likely be more attuned to the darker aspects of magic. Since the Hel Gods are associated with darker realms, Harry might not shy away from what's considered 'dark magic' as much as in the original story. He could be more of an outcast among the regular wizards who fear his different upbringing.
In a 'Harry Potter raised by Hel' fanfiction, Harry could have a very different social structure around him. Hel might surround him with beings from Norse mythology. He would learn different forms of magic, like rune magic perhaps. His relationship with Dumbledore would be non - existent or very different. He might not even attend Hogwarts. Instead, he could be trained in a place that combines the elements of the Norse underworld and magic. His character would likely be more brooding and less inclined to trust the 'light' side of the wizarding world as he was not influenced by the positive Hogwarts environment.
His personality would probably be more aloof. Since basilisks are solitary creatures, Harry might not be as sociable as in the original story.
Harry would likely be more fearless and brash. Kenpachi is a bold and fearless fighter, and his influence would make Harry less hesitant. For example, when facing a bully like Draco, Harry might immediately react with physical force rather than just trading barbs. He would be more upfront and direct in his approach to problems.
He'd probably be more in tune with nature. Since mermaids live in harmony with the sea, Harry might have a deep respect for all living things. He could be more calm and collected, like the stillness of the ocean depths.
If Harry Potter was raised by Luffy, his personality would change significantly. Luffy is always cheerful and optimistic, and this would seep into Harry. Harry would be less haunted by his past and more focused on the present and future. His sense of humor would also be different. Luffy has a very simple and direct sense of humor, and Harry would probably adopt some of that. He would be more likely to laugh at the simple things in life. In addition, Harry would be more impulsive. Luffy often acts on impulse, and Harry would be more likely to do the same, which could lead to both great adventures and some trouble. His loyalty would also be more like Luffy's, fierce and unwavering towards his friends.
He might be more reserved. The Malfoy upbringing would likely make him less impulsive compared to his canon self. He could also be more calculating in his actions.
In Norse mythology, Hel is a figure associated with the underworld. In this fanfiction, she could be a character who has some sort of connection to the wizarding world. Maybe she's a powerful witch from a different magical realm that Harry encounters and eventually marries.
His personality would be significantly different. Since house - elves have a very different culture from wizards, Harry would grow up with different values. He could be more empathetic towards the underprivileged in the wizarding world, like the house - elves themselves. He might also be less concerned with the pure - blood/muggle - born divide, as house - elves don't really care about such things. Additionally, he would have a strong sense of duty towards those he considers family, which in this case would be the house - elf that raised him. This sense of family and loyalty would be a core part of his personality.
Harry would likely be more confident in his pure - blood status, at least on the surface. Since he's raised by the Malfoys' twins, he'd be exposed to the pure - blood elitist culture from a young age. He might be more calculating and less impulsive than in the original story, having learned from the Malfoy family's shrewd ways.