In many Cornelia x Guilford fanfictions, sacrifice is a theme. They might have to sacrifice their own desires or safety for the sake of the other or for a greater good. This adds depth to their relationship and makes the story more engaging. Also, the theme of redemption can be present if one of the characters has made a mistake in the past and is trying to make up for it in the context of their relationship.
You can try fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. Just search for 'Will X Cornelia' on their search bars and see what comes up.
One possible plotline could be a romantic adventure where Will and Cornelia go on a quest together. They might face various challenges that test their relationship and their individual strengths.
Well, I'm not sure which specific Cornelia and Guilford you are referring to. But generally, you can try fanfiction.net as well. Sometimes, authors post their works there. Look for tags related to the characters' names. You might also want to check out some dedicated fandom forums where fans might share their favorite fanfictions about this pair.
In lemon fanfiction involving Lelouch and Cornelia, it often explores their complex relationship in unique ways. Writers might play with their personalities and the power dynamics between them. For example, they could be in a situation where they have to work together despite their differences, which adds an interesting layer to their interactions. It also might involve some form of character development for both of them as they face new challenges and emotions within the context of the fan - created story.
For the OC, start by defining their backstory. Where are they from? What experiences have shaped them? If they are from a lower - class area in Britannia, they might have a different perspective on the empire compared to Cornelia. Then, think about their goals. Are they seeking revenge, justice, or something else? As for Cornelia, explore her loyalty to Britannia deeper. Show her internal conflicts, like her doubts about some of Britannia's actions. Also, in their interactions, let their characters evolve. For example, if the OC challenges Cornelia's beliefs, she could start to question herself more, and the OC could learn to be more diplomatic from Cornelia.
One interesting plot idea could be that the OC is a hidden rebel within the Britannian forces. They initially cross paths with Cornelia during a battle, and the OC's unique abilities catch Cornelia's attention. As the story progresses, they start to understand each other's motives better, despite being on opposite sides. Maybe the OC has a secret power related to mind - reading which helps them anticipate Cornelia's moves, and this leads to a series of tense encounters that gradually turn into a strange sort of respect and eventually something more.
Realistically, their relationship could start from a place of mutual enmity. Since they are on opposite sides in the original story, any development would require a significant shift in circumstances. For example, if they are both betrayed by someone within Britannia, they might find common ground in seeking revenge or justice.
A possible plot could involve Lelouch losing his Geass powers and being captured by Cornelia. Instead of punishing him immediately, she decides to study him to find out more about the Geass. During this time, they engage in many deep conversations. Lelouch tries to convince Cornelia of the wrongdoings of Britannia's system, and Cornelia starts to question her own beliefs. This interaction could lead to a romantic relationship as they both grow and change through their exchanges.
For Caesar, you can show his ambitious side not just in politics but also in his relationship. He could be determined to make Cornelia the happiest woman, seeing it as another conquest. For Cornelia, emphasize her intelligence. She can be the one who gives Caesar good advice on political matters from time to time.