A fanfic about Cornelia could be a character study. It could delve into her past, like her upbringing in the imperial family and how that shaped her into the strong - willed person she is. Maybe it could also show her softer side that she doesn't often display in the anime.
In Code Geass fanfic, Nunnally is often a complex character. She is usually depicted as a symbol of innocence and hope. Writers might explore her relationship with Lelouch in different ways. For example, some fanfics might focus on how she would react if she knew all of Lelouch's secrets and plans. Her blindness also adds an interesting layer to her character, as it can be used to show her inner strength and vulnerability simultaneously.
The 'Code Geass 5 Year Fanfic' might expand on the original world - building by delving deeper into the politics of the different nations. For example, it could explore how Britannia's rule has changed over the five years, whether there are new rebellions brewing in different regions. It may also focus on the economic aspects. Maybe some regions are suffering more due to Britannia's policies, and this leads to new forms of resistance.
Fanfics often take on different genres as well. Some Code Geass Code Fanfic are action - packed adventures that take the characters on new quests outside of the original storyline. Others could be more of a mystery, where the characters have to solve a complex problem that was not part of the original plot. And then there are the ones that are more character - driven, focusing on the emotional growth and development of the characters.
One great fanfic in this category is 'The Geass Exchange'. It explores an alternate scenario where Lelouch gives his Geass to a different character, Suzaku. This creates a whole new dynamic as Suzaku, with his own set of beliefs and moral code, has to grapple with the power of Geass. The story delves deep into how the Geass affects his relationships, not just with Lelouch, but also with other characters in the Code Geass universe like Euphemia. It's a really interesting take on the concept of Geass transfer and how it can change the course of events.
Well, it could be about the restoration or recovery of certain elements in the Code Geass world. Maybe it's about recovering lost technology or powers. Fanfics often take the existing lore and expand on it. So this could be centered around a character trying to recover something important that was lost during the main storyline. It could also be about the recovery of relationships between characters that were strained or broken.
An 'OC' (original character) fanfic in the 'Code Geass' universe centered around the emperor can be really interesting. It might explore the emperor's backstory in more depth, perhaps from a different perspective than the original series. For example, it could show his early life and how he came to hold such extreme views in the series.
One great Marianne fanfic is 'The Lost Queen'. It delves into her backstory before the events in Code Geass. The author does an amazing job of portraying her character, showing her strength and intelligence. It also gives some interesting insights into her relationship with other important characters in the series.