The theme of redemption can also be present. If the female Harry Potter is in a world full of ghouls who are often seen as monsters, she might try to find a way to redeem them or at least find a peaceful co - existence. And of course, there's the overarching theme of survival. The Tokyo Ghoul world is a harsh place, and with her combined abilities from both worlds, the female Harry Potter has to fight to survive, whether it's against the ghoul - hunting organizations or other powerful ghouls.
A frequent theme is friendship and alliances. In these fanfictions, the female Harry Potter might form new friendships with the characters from Tokyo Ghoul. This could involve her using her knowledge from the wizarding world to help the ghouls, or the ghouls teaching her about their way of life. There's also the theme of secrecy and acceptance. Just as Harry had to hide her magic in the Muggle world, in Tokyo Ghoul, she might have to hide her wizarding identity among the humans and ghouls, and deal with the acceptance or rejection from both sides.
One common theme is the struggle between two different worlds. Since Harry Potter and Tokyo Ghoul have very different settings, the fanfictions often explore how a female Harry Potter would adapt to the dark and dangerous world of Tokyo Ghoul. Another theme could be power and identity. How does her magical abilities from the Harry Potter world interact with the kagune powers in Tokyo Ghoul? And how does she redefine her identity in this new context.
Yes, it is quite common. Fans are always eager to explore more of the world they love, and fanfiction provides an opportunity to do that.
You can try searching on fanfiction websites like FanFiction.net or Archive of Our Own (AO3). These platforms usually have a wide range of fanfictions, including those that combine elements from Harry Potter and Tokyo Ghoul with a female Harry Potter. Just use the search function on the site and type in relevant keywords.
One common theme is power combination. Since both Naruto and Tokyo Ghoul have unique power systems, fanfics often explore how the ninja techniques and kagune powers can be used together. Another theme is the clash of cultures. The shinobi way from Naruto and the harsh reality of the Tokyo Ghoul world are very different.
The theme of redemption can also be present. Rize's actions towards Kaneki were quite cruel in the original story. Fanfictions may attempt to give her a chance at redemption, perhaps through her relationship with Kaneki. This could involve her showing remorse for what she did and trying to make amends in some way.
One common theme is love and sacrifice. Kaneki and Touken's relationship is often depicted as a deep, selfless love. They might be willing to sacrifice their own safety or desires for the other. For instance, Kaneki could put himself in danger to protect Touka from a powerful enemy.
One common theme is the struggle for identity. The male reader often has to figure out whether they are more human or more ghoul. For example, in many fanfics, they might have human emotions but also the uncontrollable urges of a ghoul.
One idea could be a crossover where a vampire from the Harry Potter universe somehow ends up in the world of Tokyo Ghoul. Maybe a vampire who was hiding in the Forbidden Forest gets transported to Tokyo and has to adapt to the new rules of the Tokyo Ghoul world, dealing with ghouls and the CCG. This could lead to some interesting power dynamics as the vampire's magic might be a new factor in the Tokyo Ghoul ecosystem.
The most interesting element is the power combination. For example, seeing a wizard from Harry Potter use magic against the ghouls in Tokyo Ghoul's world is exciting. Magic like spells and potions could have very different effects in the ghoul - filled Tokyo.
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.
It could be really interesting. Maybe the wizards in Harry Potter world have to face the ghouls from Tokyo Ghoul. The magic spells could be used to fight against the kagune of the ghouls. For example, the Stunning Spell might stun a ghoul temporarily, giving the wizard a chance to escape or attack further.