Often, loyalty is a big theme. The male OC has to decide who to be loyal to - his own ideals, a particular character, or a group. And there's also the theme of sacrifice. In the dangerous world of Code Geass, the male OC may have to sacrifice something important for a greater good. For example, he might sacrifice his relationships or his own safety. There's also the exploration of new abilities and how the male OC uses them to either conform or disrupt the status quo.
One common theme is power and its corrupting influence. The male OC often has to deal with the allure and danger of power in the Code Geass world. Another theme is identity. Since the OC is original, there's a focus on how he discovers and defines himself within the context of the existing story.
A prevalent theme is the search for justice. In the chaotic world of Code Geass, the male OC tries to find his own version of justice. This could be in contrast to the existing power structures or in line with some noble cause. Another common theme is friendship and camaraderie. Despite the power struggles and political intrigue, the male OC forms bonds with other characters, and these relationships are often explored in depth. And then there's the theme of redemption. Sometimes the male OC has a past that he needs to atone for, and his journey in the Code Geass world becomes a path to redemption.
One common theme could be power struggles. Since Code Geass is about a world with complex power dynamics, Marrybell OC fanfics might explore how an original character fits into that, whether they are trying to gain power, resist it, or something in between.
One common theme is the power dynamics. Since 'Code Geass' has a complex power structure, in the harem fanfics with Villetta OCs, the OC often has to navigate the power plays between different characters. Another theme is loyalty. The harem members may have different loyalties, and the Villetta OC has to deal with that.
Well, in 'Code Geass OC x Kallen fanfic', loyalty is a big theme. The OC might have to prove their loyalty to Kallen and her cause. Another theme is the idea of sacrifice. In the world of Code Geass, characters often have to make sacrifices for the greater good. The OC could be in a situation where they have to sacrifice something for Kallen or their shared goals. And of course, the theme of acceptance is there too. Kallen might need to accept the OC, who could be very different from the people she usually associates with.
Often, in 'Code Geass OC x Shamna' fanfics, there are themes related to power and power dynamics. Since Code Geass is a series that deals with power - granting abilities, the OC might have their own unique power that interacts with Shamna's character in different ways. Also, themes of loyalty and betrayal can be present, especially when the OC has to make choices that involve Shamna and other characters from the Code Geass world.
One great male reader Code Geass male OC fanfic is 'The Hidden Power'. It has an engaging plot where the male OC has a unique Geass ability that sets him on a path to change the world of Code Geass. The story does a great job of integrating the OC into the existing Code Geass universe, with well - written interactions with the main characters.
A good plot is essential. It should fit well within the Code Geass universe. For example, if the male OC has a Geass power, it should be something that makes sense in the context of the show's rules about Geass. Also, the interactions with the existing characters should be believable. If the OC is suddenly best friends with Lelouch without any good reason, it won't be a good fanfic.
One common theme is Gino's loyalty. Many fanfics explore how his loyalty to the Britannian Empire or to certain characters affects his decisions. For example, how he balances his loyalty to the empire with his personal beliefs.
Love and loyalty also pop up a lot. Highschool DxD has a lot of elements related to love and loyalty within its harem - like setting. When combined with Code Geass, fanfics may show how characters develop new relationships or test their existing loyalties. For instance, a character from Code Geass might find themselves in a situation where they have to choose between their loyalty to their original cause and the new relationships they form in the world of Highschool DxD.
Well, often the theme of isolation is present. Lelouch was a very lonely character in many ways. In a suicide fanfic, this isolation could be exacerbated. He might feel that no one truly understands him or his motives. It could also explore the theme of power and its consequences. Lelouch had great power with his Geass, and his suicide could be a way of escaping the burden of that power. Maybe he realizes that the power has corrupted him in some ways or led to too much destruction, and death is his way out. And then there's the theme of legacy. His suicide could be seen as a way to leave a certain kind of legacy, whether it's a martyr - like one or a cautionary tale about the pursuit of power.
One common theme is power acquisition. Since 'Code Geass' is about special powers, self - insert characters often gain a unique Geass or some other extraordinary ability and then have to figure out how to use it in the complex world of the series.