In a fanfiction, Rima and Shiki could start as rivals. Rima might see Shiki as a threat to her position among the vampires. But then, they get paired up for a task that requires them to work together. As they spend time together, they start to understand each other better. Shiki realizes that Rima is not as cold as she seems, and Rima sees that Shiki has a kind heart beneath his tough exterior.
Power and control is also a prevalent theme. Shiki's position within the vampire hierarchy means that issues of power often come into play. Fanfictions may explore how he deals with power struggles or tries to gain more control over his own life. For example, some stories might show him rising through the ranks in a new and unexpected way.
A story could be about Rima and Shiki exploring an ancient vampire tomb. There, they find clues about their vampire lineage that they didn't know before. This discovery could change their relationship as they realize they are more connected than they thought.
One common theme is the exploration of Shiki's hidden past. Many fanfictions use the OC to dig deeper into what made Shiki the way he is. Another theme is the power struggle. Since the Vampire Knight world has a complex power structure, the OC often gets involved in power - related issues, either by accident or by design.
One common theme is his relationship with other characters, especially his friendships or rivalries. For example, his interactions with the main characters can be a central focus, exploring how he fits into the complex world of Vampire Knight.
There's 'Shiki and the Forbidden Bond' which is really interesting. It explores a different kind of relationship that Shiki could have had within the Vampire Knight universe. It has some really unique plot twists that keep you hooked.
You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. These platforms have a large collection of Vampire Knight fanfictions, and you can specifically search for those related to Senri Shiki. Just use the search bar and type in 'Senri Shiki Vampire Knight' to get relevant results.
One popular Vampire Knight Shiki OC fanfiction is 'The Hidden Shiki'. It has an interesting plot where the OC has a unique power that disrupts the existing power dynamics in the Vampire Knight world. The character development is quite engaging.
Well, another option could be to join Vampire Knight fan groups on social media platforms such as Facebook or Reddit. Fans in those groups might be able to recommend some good Shiki and Rima fanfictions or even share their own works. Sometimes, these fan communities are great sources for finding niche fan content.
A really interesting plot could be a sort of 'what - if' scenario. For example, what if Shiki and Rima were to switch their roles or abilities? How would they adapt to this new situation? It could lead to some really creative storytelling, with them having to deal with the challenges and advantages that come with this role - reversal while still maintaining their bond.