Well, it could be really strange. Maybe Harry would inherit some of Sesshomaru's demon powers along with his wizarding abilities. He might have a sword like Tessaiga instead of a wand. And his appearance could be a mix of his normal self and some of Sesshomaru's features, like his ears or eyes. His relationships at Hogwarts would also change. Instead of just being a regular wizard, his classmates might be a bit afraid of his demon side.
A fanfiction of this nature would be full of interesting twists. Harry would grow up in a very different environment. Instead of the Dursleys, he might be raised in Sesshomaru's domain. He would learn about both magic and demon lore. His Hogwarts experience would be completely transformed. He could introduce new forms of magic or combat based on Sesshomaru's abilities. His friends would have to adapt to his new identity. And the overarching plot could involve a threat that requires both his wizard and demon heritage to overcome, perhaps a dark wizard - demon alliance that only he can stop.
A fanfiction of this sort would likely start with an explanation of how this strange connection came to be. It could be that some ancient magic or prophecy binds them as brothers. Harry would probably be the more curious and talkative one, while Sesshomaru would be aloof as usual. They would encounter challenges that require both magic and demon strength to overcome. For instance, they might have to battle a powerful dark wizard who has also made a pact with some Japanese demons. The story could also explore how their different moral compasses interact. Harry is guided by his sense of right and wrong from the wizarding world, while Sesshomaru has his own code of honor among demons.
In a 'Harry Potter is Sesshomaru fanfiction', we might see a fusion of the two characters' traits. Harry could inherit Sesshomaru's pride and cold - bloodedness to some extent. The plot could involve Harry using Sesshomaru - like powers to fight the Dark Lord. For example, he could use a magically enhanced sword like Tenseiga. And there would be a mix of the Japanese yokai and the magical creatures from the Harry Potter world. It would be a unique blend of two very different mythologies and magic systems.
It would be really wild. Maybe Harry would inherit Wolverine's healing factor along with his magic. He could use his claws in duels at Hogwarts. And the story could explore how Wolverine would react to the wizarding world, perhaps being very protective of Harry.
A fanfiction with this concept would be a wild ride. Harry would likely have a different upbringing. Maybe he'd be more in touch with the darker side of magic from the start. His connection to Kronos could attract different enemies and allies. For instance, some Greek mythological creatures might be involved in his story. The Hogwarts curriculum could also be affected, with new subjects related to Greek mythology being introduced. And his destiny would no longer be just about the prophecy in the 'Harry Potter' world, but also about fulfilling or breaking away from the legacy of Kronos.
It would be a really strange and exciting mix. Harry might grow up hunting monsters instead of going to Hogwarts. He could use his magic in new ways to fight demons and other supernatural creatures. Maybe he would have a different kind of wand, like one made from a special supernatural material. His friends could be a mix of wizards and hunters.
A fanfiction of this nature would blend two very different worlds seamlessly. Harry would likely inherit John's determination and skills in addition to his own magical powers. His upbringing in the Winchester family would shape his view of good and evil in a different way than in the original Harry Potter series. He could use magic to protect the Winchester family from powerful demons. There could also be conflicts within the family as some might be wary of his magic, while others see it as an advantage in their fight against the supernatural.
A fanfiction with this premise would be a blend of two very different worlds. Harry would have the best of both worlds - the magic of the wizarding world and the detective skills of Sherlock Holmes. He could use apparition to quickly get to crime scenes in London and then use his deductive abilities to figure out what happened. His friends at Hogwarts might be a bit confused by his new skills, but they would also be in awe. And there could be a whole new set of villains, perhaps ones that combine the dark magic of the wizarding world with the criminal minds from Sherlock's era. Harry would have to use his combined skills to stop them, making for a very action - packed and interesting story.
Yes, there might be some out there in the vast world of fanfiction. Fanfiction writers often come up with the most creative and unexpected crossovers. However, it's a very strange combination considering Harry Potter is from a world of wizards and magic in a more modern - ish setting, while Sesshomaru is from a feudal Japanese - inspired fantasy world in 'Inuyasha'. But that's the beauty of fanfiction - it breaks boundaries and creates unique scenarios.
Well, in such a fanfiction, the story could start with Harry's strange dreams or some unexplained events that lead him to discover he is Thor's son. He would then have to travel between the wizarding world and Asgard. He might face challenges in both worlds, like having to prove himself to the Asgardians while also dealing with the Dark Arts threats in the wizarding world. He could learn to use Mjolnir or some other Asgardian weapon, and his relationship with his friends like Hermione and Ron would change as they adapt to his new identity.
It would be very strange. Harry's whole identity and story would be flipped. He might grow up in a Death Eater - influenced environment, which would change his views and values completely. His magic might be taught in a very different way compared to how he learned at Hogwarts in the original story.