In the 21st century, mankind fought for the right to resources, which have left portions of earth ruined. As a result, some scientists have turned to Sakuradite as the main method of powering their devices, but Dr. Kirk proposed a clean, limitless energy, which he named Third Energy. Because of his breakthrough, many are out to steal his research, including the Black Knights.

Having been granted incredible powers, Lelouch Parker must now bear the incredible responsibility of having such powers in a world that he currently despises, and against an enemy that threatens all he holds dear.

One year prior to his fated meeting that will grant him the Geass, Lelouch is offered power from a different Source in exchange for becoming a hero for more than just one world. In doing so he finds himself down a path of heroism that he will be anything but alone in walking, yet this path will lead into conflict with foes more fearsome than what Britannia could bring.

A new life. Reborn in a world of devils and chess-themed intrigue. After sacrificing everything for a peaceful world, was a Demon Emperor being granted his own personal heaven?

War. Cruelty. Bloodshed. The world is a cruel place. Lelouch knew this from the day his mother died and his sister crippled. Yet, years later, he receives a great power. The Power of the Kings. With this, Lelouch will change the very foundation of this world. He'll destroy it then create it anew. For he's the Knight of Rebellion. For he's The Man of Miracles. For He. Is. Zero! (AU)

Even with over fifteen years of peace between Britannia and the world at large, corruption and evil still seep through the cracks. Ren Amamiya hopes to change this with his friends as Phantom Thieves. The problem is, Ren was once Lelouch vi Britannia - even if he doesn't know it yet - and his past life isn't going to let him go so easily.

The Empire has fallen, the League's unity is shattered, darkness gathers in strength as the world becomes more and more savage. The only hope Earth has is for one of their own to rise like a Bat Outta Hell to rally the League once more under the banner of Justice. Burdened with a dark glory he must press on to save the world. For beyond the Savage there is the God of Evil.

To protect his sister and himself from Britannia's politics following Japan becoming Area 11 he made a deal with the Head of the Animusphere Family. In exchange for becoming a master for Chaldea when the time came Lelouch and Nunnally would be hidden and protected. Lelouch travels to Chaldea to fulfill his end of his agreement unaware of what is awaiting him. Has a Tvtropes page.

One day on a hiking trip, the student council from Ashford Academy discover a cave filled with lion and catlike drawings. Within the cave they discover a huge robotic lion that is one of seven pieces to a giant robot named Voltron: the Defender of the Universe. Will Voltron be enough to free Japan? (I own nothing.)

Power was a drug more addictive than any other, and Lelouch vi Britannia knew better than anyone what it was like to have the world in the palm of his hand, to have control and power over the lives of others. Kira must die. [Setting: The Death Note plot 90 years after Lelouch of the Re;surrection]

What if the power of Geass originated from the darkest realm imaginable? And what if those powers were enough to stir a Slayer from his slumber? Rated M for obvious reasons. Enjoy!

Rebellion can take many forms, and many paths. For Lelouch Lamperouge, becoming a Trickster was not how he expected his quest to begin, but one must play with the cards they are dealt. I am thou, thou art I.

A Prophesy Broken, A Command Spoken, A Requiem played, A World Remade. The Power of the Kings shall compel you live in a world of Isolation but shall grant you the power to live. But be warned for you will be compelled live in a with a different set of rules beyond mortal men. Do you have the resolve that is needed to live in such a world? I Lelouch Vi Britannian command you all...

Following a strange dream Lelouch gains a weapon known as a Keyblade, but shortly afterwards Ashford Academy is attacked. Nunnally is abducted and he is cast away to another world. Now Lelouch must learn to use it and find allies to save his sister as others begin obtaining the Keyblade setting the stage for a conflict unlike no other. Multi-series crossover. Has a TvTropes page.

Tanya dies in an artillery barrage on the Rhine Front, contrary to both her and Being X's plans. Unwilling to let his chew toy escape so easily, Being X reincarnates Tanya back into Japan... Six years before Britannia conquers Area 11. (First posted on Space Battles)

In an alternate world without Geass, Lelouch awakens to another power from the Collective Unconscious - Persona. Leading a band of phantom thieves through the Metaverse, he seeks to topple the Britannian regime, stealing one corrupt heart at a time. Featuring the cast and setting of Code Geass, put into Persona 5's overarching scenario.

Nunnally tiene un problema con su novio, el elegido de la llave espada, uno que la está poniendo molesta, pero este no tiene idea de lo que pueda estarle pasando ¿Que podría poner tan molesta a la chica de los ojos violeta?

Kairi pensaba en Sora mientras se preparaba para la boda de su mejor amigo, lo que más le dolía... Era que ella no era la que caminaba al altar.

IMPORTANT: These and all my works here are all posted as one single Work at AO3, i am just Putting them here as their exact Xovers. This one: Kaiserin's Many fates version of A Young Girl's Guerrilla War, AU esque. Omake content level writting at most, you have been warned OG author of A Young Girl's Guerilla War is Redhead in SB and AO3

A Supreme Being cannot be killed or defeated and even when stopped. It may come back for revenge. And so, the consciousness of the universe, God should have never attacked someone with the ability to destroy it all. A new era is about to begin, and while slowly gathering the strength to pay the debt. The Leader of Ainz Ooal Gown, will bring the world to its knees.

Lelouch, Nunnally, and Suzaku are teleported into the world of Devil May Cry. What happens when they meet the Son of Sparda?

Written for Zaru. Bismarck Waldstein regrets only one thing; that he has no son. When he claims an orphan boy for his own, the course of history takes an unexpected turn.

Now with the history of the old war told to them the SSDA and Ash Ketchum go on a quest to find the legendary heroes and long lost friends Yuma Tsukumo and Usagi Tsukino they travel to Elyos to find them as the heroes travel across new lands they meet new & old friends such as the mysterious Zero togther they must find the 12 Emblem rings before the Fell dragon cult do...

Britannia has fallen, and the Decepticons are well on their way to the complete global domination of Earth. However, hope is not lost. Six months after the failed Black Rebellion, Zero and Optimus Prime have returned to finish what they've started. With their Autobot-Black Knight alliance grown with new additions, our heroes have ever intent on freeing Earth once and for all.

Takes place after the events in the Soul Society with Lelouch and his group ending up being sucked in but circumstances leads them to places they did not expect and they continue on they now confront and take on their enemies while settling things from their pasts continuing their paths as Shinigami. Sequel to Lelouch of the Shinigami Path. (A rewrite from the first one)