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A/N: Please note my grammar is awful. If you know someone who can correct my grammar or point out someone who is beta I be thankful.
Summary: Stopping Emperor Charles's Sword of Akasha and Schneizel FLEIJA attack cause a chain reaction that kick Lelouch to another world but Lelouch return with power that make Geass a parlor trick, weapon and technology greater than Schneizel's Damocles hundred time over, powerful army that put the Black Knight to shame.
2018 ATB
Lelouch use his evolve geass on collective unconscious of humanity to continue time, this action cause to slowly dissolving both the Sword of Akasha and his parents from existence therefore defeats his father.
Knight of one Bismarck Waldstein sense that Charles zi Britannia lost, Schneizel decides Lelouch is too much of a threat & took the chance to destroy him and Charles with FLEIJA in the Kamine Island thus the island become obliterate.
Charles didn't want to go down without a fight grasp Lelouch by the neck just when the FLEIJA explode. It causes chain reactions that effect the time and space continuing, causing Lelouch become immortal with the code and throws him to time and space losing his memory.
668 BCE
When Lelouch awaken up unable to remember other than his name he found himself on a wild wilderness later discover with the foreign plants, animals, and two moons he is in alien planet. He continues to survive the wild living on a cave while eating the plant and animal trying to discover who he is. One of them he found out is he an immortal. During one of his hunts a ship landed near him there he meets Asari race. He goes with them hoping they can help find his origin.
660 BCE
Lelouch discover with the Asari scientist help, he is suitable to use biotic.
580 BCE
After developing faster-than-light spacefaring capabilities based upon Prothean technology, the Asari and Lelouch who become asari citizen and brilliant scientist begin to explore the mass relay network, and eventually discover the huge Citadel space station at a hub of many mass relays.
520 BCE
The salarians discover the Citadel and open diplomatic relations with the asari.
500 BCE - 1 CE: Founding and Formation of the Citadel Council Era
The asari and salarians together colonize the Citadel later formed the Citadel Council and establish it as a center of the galactic community, led by the Council. This year is also known as 0 GS, the beginning of the Galactic Standard (GS) timeline.
1 CE: The Rachni Wars
The rachni, a species of highly intelligent hive-minded insects, are discovered when a Citadel expedition opens a dormant mass relay leading to their star systems. The rachni prove to be hostile and begin a war with the rest of the galaxy. Negotiation with the rachni queens is impossible because they cannot be contacted in their underground nests on the toxic rachni worlds.
80 CE
The Rachni Wars continue. Lelouch become a commander against the Rachni with his genius strategy and becoming one of the strongest biotic users. Even so, Citadel Council and the Rachni only reach a stalemate. Until the salarians make first contact with and uplift the primitive krogan, manipulating them into acting as soldiers for the Citadel Council. The krogan prove able to survive the harsh environments of the rachni worlds and pursue the rachni into their nests, systematically eradicating queens and eggs. However Lelouch can't help feel they are making a mistake giving the krogan space capability when Lelouch study krogan society and more importantly the female krogan number of children they can give birth.
300 CE
The rachni are declared extinct. In gratitude for their aid during the Rachni Wars, the Council rewards the krogan a new homeworld. Free of the harsh environment of Tuchanka, the krogan population explodes.
301 CE
Seeing the krogan population growing Lelouch can only see this mistake the Council had made, not understanding the krogan culture at all. Lelouch growing concerns about their expansion lead to the founding of the Special Tactics and Reconnaissance branch of the Citadel.
302-693 CE
The krogan begin to expand exponentially, colonizing many new worlds. Council become concerns about krogan expansion Lelouch the leader of the Special Tactics and Reconnaissance branch of the Citadel convince the Citadel leaders to create special operative who will later be call Spectre and making Beelo Gurji, a salarian operative, is appointed the first Spectre by the Citadel Council from Lelouch advice.
700 CE: The Krogan Rebellions
Krogan warlords leverage veterans of the Rachni Wars to annex territory from other races in Citadel space. Eventually the Council demands withdrawal from the asari colony of Lusia, but the krogan refuse. A preemptive strike is made on krogan infrastructures by the Spectres. The Krogan Rebellions begin.
The Citadel Council makes first contact with the turians around this time and persuades them to aid in the war. After the krogan respond to the initial turian offensive by devastating turian colonies with weapons of mass destruction, the turians vow to stop the krogan from ever becoming a threat again.
Sometime after the turians join the galactic community, the volus are accepted as a client race of the Turian Hierarchy.
710 CE
Realizing that the krogan will never give in as long as they can replenish their fighters, the turians unleash a salarian-engineered bio-weapon known as the genophage on the krogan. The krogan population starts its decline.
800 CE
The Krogan Rebellions end, though scattered krogan insurgent actions continue for decades. The turians fill the military and peacekeeping niche left by the decimated krogan.
The Citadel Conventions are drawn up in the wake of the conflict.
900 CE
The turians are granted a seat on the Citadel Council in recognition for their service in the Krogan Rebellions.
1600 CE
The first sightings of the Collectors are reported in the Terminus Systems. In Citadel space, the claims are dismissed as unsubstantiated rumors and tall tales. However Lelouch know they exist and believe they are dangerous but can't do nothing as the Council forbid him investigating, all he can do is collect any Intel and put his personal black box.
1895 CE: The Geth War and after
Over the years Lelouch who one of the best commanders and strongest biotic user started to doubt the council, the last stray when Citadel council decides to banished the Quarian's for the punishment building the Geth and lost Quarian's position in the council.
1897 CE: Lelouch the head of Special Tactics and Reconnaissance retired his position
He left with his spaceship though spaceship isn't accurate to say is more like a space cruise ship hidden inside weapons of mass destruction that will scare pirate if they knew.
He went to a part of space that had not been uncharted during his travel Lelouch's ship caught a graviton buildup which ignited a mass expansion causing to create a meteor storm. His ship is caught by an asteroid shower, escaping the storm his ship got caught a gravitational pull that suck into the wormhole and travel the other side of space.
Completely lost Lelouch use his space scanner to comb the area and found an inactivated Mass Effect in the solar system. Biggest surprise however is Lelouch discover in the fourth planet a habited species, he found his own race.
Or a close related to his race.
Lelouch decide to land his ship and hide his present from the people of earth and mingle the species who call themselves human.