To develop their characters further, you could explore their family backgrounds more deeply. Maybe Haruka has a family secret that Juri helps him uncover, which in turn changes his view of the world. For Juri, you could show her vulnerable side more, like when she's faced with a situation she can't control with her usual strength.
In Vampire Knight Haruka and Juri fanfiction, their characters can be developed further in multiple ways. You could introduce a moral dilemma for them, like having to choose between saving a group of vampires or a group of humans. This would force them to examine their beliefs and priorities. Another aspect could be their romantic relationships. If Haruka falls in love with someone unexpected, it could change his character significantly as he has to balance his feelings with his loyalty to Juri. For Juri, if she experiences heartbreak for the first time, it could make her more empathetic and less cold. Additionally, you could show their growth in terms of their powers. Maybe they have to train together to unlock a new level of their abilities, which would also strengthen their bond as they learn more about each other during the process.
One common theme is mystery. Given the nature of the Vampire Knight world, Juri and Haruka's backstories and their relationship often hold many secrets. Fanfictions may focus on uncovering these secrets, like what really happened between them in the past that led to their current relationship status.
In Vampire Knight fanfiction, Juri and Haruka's relationship can be depicted in various ways. Some fanfictions might show them as having a deep, unspoken bond from their past. They could have shared secrets or experiences that tie them together. Maybe they were once friends or had a more complex relationship that was affected by the events in the Vampire Knight world.
One interesting plot idea could be exploring their past before the events in Vampire Knight. Maybe they had a secret mission together that shaped their relationship. Another could be a story where they have to protect a new vampire who is a key to some sort of vampire - human peace. Or perhaps a plot where they get trapped in a parallel world where their roles are reversed.
You could also develop their characters through their interactions with other characters. Zero's relationships with other vampire hunters or his classmates could influence how he behaves with Kaname. And Kaname's interactions with other Purebloods could affect how he approaches Zero. For example, if Kaname has to deal with a Pureblood who is jealous of his relationship with Zero, it could bring out new aspects of his character.
For Batman, his character could be developed by showing more of his internal struggle. In the Arkham Knight scenario, he's facing a lot of challenges. Maybe he starts to question his no - kill rule more when he sees the destruction the Arkham Knight is causing. With Catwoman, her thieving skills could be explored in more detail. She could use her skills not just for personal gain but also to help the people of Gotham in a more subtle way.
For Tsukune, his character could be developed further by giving him more powerful vampire abilities. He could learn new techniques from Kahlua and use them to protect his friends. This would also make him more confident in the vampire world.
For Jeremy, his character could be developed further by exploring his relationship with his new - found powers in more depth. He could struggle with the moral implications of using them, and Tyler could be there to offer a different perspective. Tyler, on the other hand, could be developed by showing more of his softer side. Maybe he has a passion for art or music that no one knows about, and Jeremy discovers it.
One common theme is exploring Juri's past. Since her backstory in the original Vampire Knight series is somewhat mysterious, fanfiction often delves deeper into her history, like her relationships before coming to Cross Academy.
You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own (AO3). These platforms have a wide range of Vampire Knight fanfictions, including those focused on Juri. Just use the search bar and type in 'Vampire Knight Juri' to see what comes up.
In the 7 Minutes in Heaven setting, characters' personalities can be developed through the forced one - on - one interactions. For example, Yuki's kind - hearted nature can be further explored if she is paired with a difficult character. She might try to understand their pain and in doing so, her own empathy grows. Kaname, being the brooding and powerful vampire, could show a more vulnerable side if paired with someone he truly cares about. He may let his guard down during those 7 minutes and reveal his insecurities. Zero, with his tough exterior, might soften a bit if he is paired with a character who sees through his facade and makes him confront his true emotions.