A fanfic could focus on Rize teaching Kaneki how to fully embrace his ghoul side. She could show him how to use his powers more effectively and how to hunt without attracting too much attention. In return, Kaneki could teach Rize about human emotions and values, which she might have lost touch with over the years of being a ghoul. This exchange could lead to a deep bond between them.
One possible fanfic could be about how Rize and Kaneki's relationship evolves in a world where they manage to overcome their differences. Maybe they start to understand each other's pain and loneliness, which were deeply rooted in their ghoul and half - ghoul existences respectively.
One great Tokyo Ghoul Kaneki crossover fanfiction is the one where he crosses over with the world of 'Attack on Titan'. It's really interesting to see how Kaneki's ghoul abilities interact with the Titans. The author does a great job of creating a believable scenario where the two worlds collide.
One great Kaneki x Tsukiyama fanfic is 'A Different Bond'. It explores their relationship in a unique way, showing how they gradually understand each other on a deeper level. The story has some really well - written emotional moments between them.
Well, we can expect a lot from the free Kaneki story in Tokyo Ghoul Rebirth game. Probably, we'll see Kaneki's character development. Maybe he'll face new challenges and enemies, which will show his growth as a character. Also, the story might explore more of his relationships with other characters in the Tokyo Ghoul universe.
In some crossovers, like the one with 'Bleach', a really creative plot twist is when Kaneki's kagune somehow gets linked to a Hollow's power. It completely changes the power dynamics and makes for some intense battles. The idea that his ghoul nature could be combined with Hollow abilities in such a way was unexpected and exciting.