One common theme could be power and its corrupting influence. Just like in the original Code Geass series, the fanfiction might explore how the Geass power can change a person. Lelouch's journey with the Geass is a prime example of how power can be both a tool for change and a source of moral decay.
The theme of identity is also likely to be present. Characters in Code Geass often struggle with their identities, whether it's Lelouch hiding his true self as Zero or Suzaku trying to find his place between two worlds. The fanfiction could expand on these identity crises, perhaps by introducing new situations that force the characters to re - evaluate who they are.
Another theme might be loyalty and betrayal. The complex relationships between the characters in Code Geass, such as between Lelouch and Suzaku, often involve elements of loyalty and betrayal. In the fanfiction, this could be further explored. Maybe new characters are introduced who test the loyalty of the existing ones in unexpected ways.
One interesting aspect of 'Code Geass: Unveiling the Truth' fanfiction could be the exploration of alternative storylines. For example, it might delve into what would happen if certain characters made different choices. Maybe Lelouch could have chosen a more peaceful approach to achieving his goals instead of using the Geass in such a forceful way. This could lead to a completely different political and social landscape in the Code Geass universe.
One common theme is resistance. Since America is often depicted as being under Britannian rule in these fanfictions, characters rise up against the oppressors. Another theme is the adaptation of Geass power in an American cultural context. For example, how the power might be used differently due to the unique social and political landscape of America. And there's also the theme of identity, as characters struggle to maintain their American identity while dealing with the Britannian influence.
Love and loyalty are common themes. The fanfictions often explore the deep bond between CC and Lelouch.
Cultural clash is also a theme. Naruto comes from a ninja - based culture and Code Geass has its own complex society. When Naruto enters the Code Geass world in these fanfictions, there are often interesting interactions due to the differences in their cultures. And of course, the harem theme itself, with the relationships between Naruto and the various characters from both universes being explored, like love, loyalty, and jealousy among the harem members.
One common theme is loyalty. Since the Black Knights are a group, many fanfictions explore the loyalty among its members, and how they deal with betrayals or doubts within the group. Another theme is the fight for justice. They are rebels, after all, and fanfictions often delve into their motives and the different ways they pursue justice in the Code Geass universe.
One common theme is the abuse of power. Since mind control is a form of power in the 'Code Geass' world, when combined with 'lemon' elements, it can lead to situations where one character takes advantage of another. Another theme could be the struggle between free will and forced actions. The mind - controlled characters are forced to do things they may not want to do, and this creates a lot of internal and external conflict.
Power dynamics is also a theme. Euphemia was a princess and Lelouch was a revolutionary in a way. Fanfictions may explore how their relationship affects the power balance in the world of Code Geass. It could be about them using their combined influence for good or the struggles they face because of their different positions of power. And also, the theme of sacrifice might be present, as they both had to make sacrifices in the original story, and fanfictions can expand on that concept in relation to their relationship.
One common theme is loyalty. Sayoko is very loyal to her master in the series, and fanfics often explore this loyalty further, like in situations where she has to make difficult choices to stay true to her loyalty. Another theme could be her relationship with other characters, such as how she interacts with the main characters in new and different scenarios.
One common theme is redemption. Since she's traveling back in time, the female Lelouch often tries to right the wrongs she did in the original timeline. Another theme is the exploration of different relationships. For instance, how her relationships with other characters change when she has the knowledge of the future.
One common theme is the empowerment of Nunnally. In many fanfics, she is no longer just a damsel in distress but becomes a force to be reckoned with. Another theme is family bonds, especially between Nunnally and Lelouch. Their relationship is often explored in more depth, whether it's through Lelouch's efforts to protect Nunnally or Nunnally's attempts to understand her brother's actions. Also, the idea of changing the world for the better is quite common. Nunnally, with her unique perspective, often tries to make Britannia or the whole world a more just and equal place in these fanfics.