One plot idea could be that a Kitsune disguises itself as a student at Hogwarts to learn more about human magic. It could get involved in Harry's adventures and use its Kitsune abilities, like shape - shifting or illusion - casting, to help or sometimes cause trouble. Another idea is that a Kitsune is a guardian spirit of an ancient magical place near Hogwarts, and Harry discovers it during one of his explorations. The Kitsune then becomes an ally or a guide for Harry in uncovering secrets about the wizarding world.
In some fanfictions, the plot might involve a Kitsune being a part of a prophecy in the wizarding world. Just like Harry was part of a prophecy, the Kitsune could also be fated to play a role in a great event. For example, the Kitsune might be the key to uniting the wizarding world with the magical creatures in a more harmonious way. Harry, being the hero of the wizarding world, teams up with the Kitsune to fulfill this prophecy. Along the way, they face challenges from those who oppose this unity, and they have to overcome their differences and learn from each other's cultures. The Kitsune could introduce Harry to the ancient magic of its kind, and Harry could share the knowledge of Hogwarts magic with the Kitsune.
One idea could be that the female kitsune uses her shape - shifting abilities to help Harry Potter in his fight against Voldemort. For example, she could transform into a bird to spy on the Death Eaters. Another plot could involve the kitsune's magical powers being a key to unlocking an ancient magic that can defeat the Dark Lord. She might also have a connection to the magical creatures in the Harry Potter world, like helping Hagrid with some of his more dangerous creatures.
Maybe the female kitsune is an ancient magical being who has been asleep for centuries. Harry stumbles upon her while exploring an old, forbidden part of the Hogwarts grounds. She wakes up and initially doesn't understand the modern wizarding world. Harry helps her adapt and in the process, they develop a deep friendship that could potentially turn into a romantic relationship as they face various challenges together, like dealing with the Ministry of Magic's suspicions about the kitsune.
Another idea is that Naruto's kitsune heritage is somehow linked to an ancient prophecy. This prophecy states that he and Sasuke are fated to either save or destroy the ninja world together. As they journey together, they start to discover the true meaning of the prophecy and how their relationship plays a crucial role in it.
One idea could be that Naruto, with his kitsune powers, and Moka end up in a parallel dimension where they have to work together to find a way back home. They face strange creatures and have to learn about each other's abilities along the way.
Well, perhaps the Sorting Hat detects some kitsune - like qualities in Harry and is unsure whether to put him in Gryffindor or create a new house for him. This could start a whole new debate within Hogwarts. Also, the idea of kitsune illusions could play a role. Harry could use kitsune - inspired illusions to deceive his enemies, like creating false images of himself or his friends to mislead Death Eaters. And what if the Dementors are actually related to some dark aspect of kitsune lore? Harry would then have to use his newfound knowledge of kitsune magic to combat them in a different way than just using the Patronus charm.
Maybe Alucard is a time - traveler who accidentally ends up in the era of Harry Potter. He initially has his own agenda but gets involved in the fight against Voldemort. His unique powers, which are very different from the magic in the wizarding world, make him both an asset and a mystery. Harry and his friends are both fascinated and a bit afraid of him. Alucard could also introduce a new type of magic or power that the wizards have never seen before, which could change the balance of power in the war against the Dark Lord.
One idea could be that a character from Harry Potter, like Hermione, accidentally gets transported to Storybrooke. She could use her magic knowledge to help the residents solve a mystery that has been plaguing the town. Maybe it's a spell that has gone wrong and is causing strange things to happen, and her logical thinking and spell - casting skills would be very useful.
One idea could be that Slenderman somehow enters the wizarding world of Harry Potter. Maybe he's drawn by the powerful magic there. He could start causing strange disappearances in the Forbidden Forest, and Harry and his friends have to figure out how to stop this new, otherworldly threat using both their magic skills and their knowledge of the wizarding world's secrets.
One idea could be that Shikamaru, with his strategic mind, gets transported to the wizarding world of Harry Potter. He could use his intelligence to help Harry and his friends in their battles against Voldemort. For example, he might come up with unique battle plans that the wizards hadn't considered before, like using the environment in Hogwarts in unexpected ways during duels.
Well, a plot could be Loki disguising himself as a Hogwarts student. He gets involved in the house rivalries and eventually meets Harry. They start off as adversaries but then realize they both have a common goal of protecting the wizarding world from a hidden danger. For example, an ancient evil that is about to be awakened. Loki could use his Asgardian knowledge and Harry his wizard skills to defeat it. Also, Loki could be interested in the magic of the wizarding world and want to learn more, leading to some humorous and interesting interactions with the Hogwarts professors.