One common theme is alternate universes. Writers like to explore what would happen if certain events in the original series had gone differently. For example, what if Lelouch had made different choices during his battles or negotiations.
Some dedicated anime forums might also be a good place to look for Code Geass Lelouch vi Britannia fanfics. For example, Anime-Planet has a community section where fans might share or recommend their favorite fan-written stories. Additionally, Reddit has subreddits related to Code Geass where you can ask for fanfic suggestions.
One interesting 'lelouch lamperouge crossover fanfiction' could be a crossover with the 'Code Geass' universe and the 'Fullmetal Alchemist' world. In this story, Lelouch might use his Geass power to navigate the complex moral and alchemical dilemmas in the 'Fullmetal Alchemist' world. Another could be a crossover with a superhero universe, where he teams up with heroes to fight a common enemy, using his strategic mind and Geass.
I'm not specifically familiar with 'Marianne vi Britannia' light novels. It could be a rather niche or new series. You might try searching for it in specialized light novel databases or forums to find out more about popular ones in this category.
You could start by looking in local bookstores that have a section dedicated to light novels. Some larger chain bookstores might carry them if they are widely available.
A plot could involve Lelouch and Kallen being forced to work with an old enemy in order to stop a greater threat. At first, they are hesitant and distrustful, but as they face difficulties together, they realize that they can use this situation to their advantage. This situation also brings them closer as they share their strategies and secrets.
In fanfiction, their characters can be developed in various ways. For example, Kallen might be more open about her feelings towards Lelouch earlier than in the original series. Maybe she directly confronts him about her admiration and loyalty, which could lead to different relationship dynamics.
To start writing 'lelouch lamperouge crossover fanfiction', begin by researching the other universe you plan to cross with. If it's a science - fiction world, understand its rules, technology, and social structure. For Lelouch, consider how his skills, motives, and relationships from 'Code Geass' would transfer. You could start with a simple 'what if' scenario. For instance, 'What if Lelouch landed in a world where there is no concept of royalty but only powerful corporations?' This can be the seed for your story. Outline your plot, including the introduction, rising action, climax, and resolution. Don't forget to develop the new characters and how they'll react to Lelouch.
Britannia is mostly fictional. While it may draw some inspiration from historical events and settings, it doesn't directly represent a true story. The plot and characters are largely imagined for entertainment purposes.
Britannia is largely fictional. It takes some inspiration from historical periods and events but weaves them into a fictional narrative with creative liberties. So, it's not a strictly true story.