There is a fanfic called 'Lelouch's Time Travel Adventure'. In it, Lelouch travels back in time to a point before the start of the series. He uses his knowledge of the future to try and prevent the events that led to the sad state of the world in the original story. It has some really cool moments where he outsmarts his enemies using future knowledge, and the way the author writes his internal monologues is very interesting, making it a great read for Code Geass fans.
A good Code Geass Lelouch fanfiction is 'Lelouch in a Parallel Realm'. In this story, Lelouch is transported to a parallel world where the power dynamics and politics are different. He has to adapt and use his wits in new ways. 'Code Geass: Lelouch's Alliances' is also great. It shows Lelouch forming unexpected alliances and how those relationships shape his journey. And 'The True Ending of Lelouch' is a fanfiction that tries to give a more satisfying and conclusive end to Lelouch's story.
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.
One great Code Geass Lelouch Ashford harem fanfiction is 'The Ashford Harem Adventures'. It explores different relationships Lelouch could have within the Ashford Academy setting. The characters are well - written and it stays true to the original personalities for the most part.
Time travel can greatly expand Lelouch's character development. When he travels back in time, he gets a second chance. This makes him more cautious as he doesn't want to repeat the same mistakes. For example, he might be more careful in his relationships with Suzaku and others, knowing how things turned out before.
There's also 'Brotherhood in Code Geass'. This fanfic focuses on the unbreakable bond between Lelouch and his brother. The OC in this story is a catalyst for change. It's filled with action - packed scenes and emotional moments that will make any Code Geass fan love it.
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 great fanfic could be 'A New Path'. It explores the relationship between Lelouch and Suzaku in a post - Code Geass world where they have to work together to rebuild society. The story delves deep into their characters, showing how they've changed and how their bond has evolved. It's full of emotional moments and interesting plot twists that keep you hooked.
There's also 'Female Lelouch: Time's Redemption'. In this fanfiction, the female Lelouch's time travel leads to some really unexpected alliances. For example, she teams up with some characters that were previously her enemies in the original timeline. It's full of plot twists and turns.
Perhaps they travel to a time when the Geass power was first created. Lelouch could try to change the nature of the Geass power to make it less destructive. This would involve him interacting with the original creators of Geass and trying to persuade them to modify it. Meanwhile, Nunnally could be learning about the history of their world from a different perspective, which would help them in their future plans.
Lelouch's character would likely become more cautious. Knowing the consequences of his past actions through time travel, he might think twice before making rash decisions. For example, he might not be as quick to use his Geass power without considering all the long - term effects.