Hermione would probably be extremely curious about the ghouls. She'd want to study their biology, especially the kagune. She might even try to find a way to use her magic to help the half - human, half - ghoul characters like Kaneki deal with their identity crisis.
One way the worlds could collide is through a magical accident. Maybe a spell in the Harry Potter universe goes wrong and opens a portal to the Tokyo Ghoul world. The wizards could be shocked to see the ghouls with their kagunes. And the ghouls would be equally surprised by the magic of the wizards.
Well, in a Tokyo Ghoul and Harry Potter crossover fanfiction, there could be a character who is both a ghoul and a wizard. This character would have to struggle with the dual nature of their existence. On one hand, they have the magic of the wizarding world, but on the other, they have the hunger for human flesh as a ghoul. They might use magic to try and control their ghoul instincts, like using a spell to suppress the urge to attack people.
There are indeed. In some 'Harry Potter Tokyo Ghoul fanfic', the authors might explore how the magic in Harry Potter could be used to either cure or control the 'ghoul' condition in Tokyo Ghoul. It could also involve crossovers of characters, like Harry Potter and Kaneki Ken meeting and having to work together to solve a problem that affects both their worlds. This kind of fanfic often attracts fans of both series who are eager to see new and unexpected combinations.
A great Tokyo Ghoul - Harry Potter fanfic might involve a crossover of the two universes' magic systems. Imagine if the spells in Harry Potter could be used to control or counteract the ghouls' powers. Some fics could explore how the ghouls' need for human flesh might be affected by the presence of magic potions that could substitute it. You can often find these types of fics on fanfic websites like Archive of Our Own or Fanfiction.net by simply searching for 'Tokyo Ghoul Harry Potter crossover'.
One idea could be a crossover where a character from Harry Potter accidentally travels to the world of Tokyo Ghoul and Seikirei. They might use their magic to help in the battles against the ghouls in Tokyo Ghoul and get involved with the spirit battles in Seikirei. For example, Harry Potter himself could arrive and use spells like 'Stupefy' to stun the ghouls or use magic to protect the Sekirei from harm.
A plot might involve a magical accident that transports some of the Tokyo Ghoul characters into the wizarding world. Kaneki could end up at Hogwarts and be sorted into a house. He'd struggle to hide his ghoul identity while also trying to find a way back home. At the same time, the wizards are intrigued by his unique abilities and some, like the more power - hungry ones, might try to use him for their own gain. Harry Potter and his friends would then have to decide whether to trust Kaneki or not.
The characters would interact in very unique ways. For example, Harry Potter might be initially cautious around the ghouls from Tokyo Ghoul. He's used to dealing with Voldemort and his Death Eaters, but ghouls are a completely different type of threat. Ken Kaneki, being a half - ghoul, could teach the wizards about the nature of ghouls, and in return, the wizards could show him some amazing magic spells.
The storyline could be really interesting. Maybe the ghouls could be a new kind of dark creature in the Harry Potter world. The characters from Tokyo Ghoul, like Ken Kaneki, might attend Hogwarts. He could struggle with his ghoul nature while trying to fit in with the wizards and witches. The magic in the Harry Potter universe could also have an impact on the ghouls' abilities, perhaps suppressing or enhancing them.
Some smaller, more specialized fanfic communities or forums might also have these types of crossovers. For example, if there are dedicated Harry Potter or Tokyo Ghoul fan communities, they may have a section for fanfics, and among them could be the ones that combine the two. You can search for these communities on social media platforms or through Google.