One possible plotline could be that Ruka and Kaname start to explore their past relationship more deeply. Maybe there was an event in their past that was left unresolved, like a misunderstanding. They could go on a journey to figure out what really happened, which might involve meeting old friends or foes from their vampire world.
Perhaps in the fanfiction, Ruka and Kaname are forced to team up against a common enemy. This enemy could be a new vampire threat that is endangering their world. As they work together, they start to see each other in a new light. Ruka discovers a more vulnerable side of Kaname, and Kaname realizes how strong and reliable Ruka can be, leading to a new level of respect and a possible change in their relationship.
A plot could revolve around Ruka's unrequited love for Kaname. In the fanfiction, she might decide to finally confess her true feelings to him. However, Kaname is preoccupied with his own duties and responsibilities in the vampire society. This could lead to a series of emotional exchanges between them, with Ruka trying to break through Kaname's cold exterior.
One possible scenario in a Ruka and Akatsuki fanfiction could be that they team up to protect Yuki from the pureblood vampires who have some devious plans. Ruka, with her loyalty to Kaname, might initially be hesitant to work with Akatsuki but realizes they have a common goal. Akatsuki, being a skilled vampire himself, could bring his combat abilities to the table while Ruka uses her knowledge of the pureblood society to strategize.
One great fanfiction could be about Kaname and Yuuki's secret meetings in the moonlight. They might share their deepest fears and desires away from the prying eyes of the vampire and human worlds. In this fanfic, their love could be portrayed as a powerful force that overcomes all the obstacles in their path, like the animosity between vampires and humans.
Well, in a fanfiction, their relationship might take a more adventurous turn. Maybe they decide to leave the familiar vampire world behind and explore the human world together. This would expose them to new experiences and challenges that they haven't faced before. As they face these together, they would grow closer in ways that are not possible in the original story, with their relationship evolving based on these shared adventures and the new understanding they gain of each other and the world around them.
They could be rivals in a fanfiction. Since Ruka is often focused on Kaname, and Akatsuki has his own loyalties and tasks within the vampire world, they might compete for resources or information that could benefit their individual causes. For example, if there's a limited supply of a special blood type that is valuable to vampires, they could both be vying for it for different reasons.
One possible fanfiction could be about Kaname's sister being a hidden protector. She secretly watches over Kaname and Yuki, using her unique powers to keep them safe from the more dangerous vampires in the academy. Maybe she has the ability to foresee danger and intervenes at crucial moments without revealing her true identity.
One possible fanfiction could be where Kaname's sister has a hidden power that she discovers over time. She might struggle with how this power affects her relationship with Kaname and the other vampires in the story. For example, her power could be related to mind - reading, which makes her privy to secrets that she wishes she didn't know.
Well, perhaps Yuuki's blood has a special taste or effect on Kaname. It could make him stronger in a unique way, different from other vampires he has bitten before. This could be a significant plot point in the fanfiction as it might attract unwanted attention from other vampires who are envious of Kaname's newfound strength.
They could face a lot of opposition. The vampire society might see it as a disgrace to their pureblood status as Kaname is marrying a former hunter. And the hunter side could view Zero as a traitor. But their love might be strong enough to overcome all these obstacles. Maybe they'd have a secret ceremony at first, only inviting a few trusted friends like Yuki who understands both of them well.
The plot could be about the child trying to bring about peace between vampires and humans. Using its special connection to both worlds, it could strive to end the long - standing feud. It would face many difficulties along the way, like distrust from both sides, but with determination and the legacy of its parents, it could make a difference.
The plot could involve a grand wedding ceremony in the Vampire Knight world. Yuki might be wearing a beautiful white dress, symbolizing purity and new beginnings. Kaname, in his elegant vampire attire, would be waiting for her at the altar. There could be a lot of political intrigue as well, with different vampire clans either supporting or opposing the union, since it might change the power dynamics among them.