A silence ensued in a completely white plane of existence aka Kahn's inner world as the Future Kahn faced the Present Kahn who was now staring at him with a feeling of trepidation. Both of them were now in their soul forms and given the density of their auras, the future Kahn seemed more stronger and firmer by at least 2 times than the current Kahn.
And now, the current Kahn's countenance turned serious as he asked
"Tell me about everything that happened in the future."
The future Kahn then summoned a couple of comfortable luxurious thrones while the Dragon behind him rested on the supposed white floor.
"Have a seat... It's gonna take a while." said future Kahn.
After both of them sat, casually leaning off against the throne and folded their right leg over the other and rested their face on the right palm while relying on the armrest for support, completely mirroring each other
"I guess some habits are common regardless of the timeline." said future Kahn.
Soon, he summoned a red archaic rune in between them that hovered in the air, resembling that of a fluttering lotus while multiple branching runes kept spreading and retracting on their own.
"This is the Transcendent Rune of Reminiscence. It has been the reason why I was able to come to the past and it has been on your back ever since God of Darkness sent you to Vantrea." iterated future Kahn with a casual smile.
"It is one of the 5 Transcendent Runes created by Gods. This one is particularly created by God of Time himself. Back in the original timeline, God of Time gave an archaic incantation to Hero of Time which would help him come back in time in case he failed to kill the Demon God.
It went against the rules set by other Gods but the God of Time simply didn't care even if he had to cheat given what was on stake." he explained.
The current Kahn nodded and asked the future him
"Then how did you use it?"
To his query, the Martial Emperor responded "After my fight with the Hero of Time, which is about to happen 10 years from now I ended up killing him. But before his death, this bastard pulled this dirty trick that went against the rules agreed by the Gods.
However In the original timeline, I acquired a skill that granted me the effects of reading a dead person's memories. A necromancer whom I met in the original timeline taught me this skill after finding out my identity as the Hero of Darkness.
It was one of my aces that no one knew about. From his memories, I found that his original name was Gideon Melvinger.
He was a bastard son of a noble who pretty much had the story of a standard Weak to Strong genre protagonist of a novel.
And he hated that name after being summoned in Vantrea as hero so he changed it to Anakin since it reminded him of his weak old self.
But that's not important information for us so we'll skip that." he spoke nonchalantly.
"After learning about the spell, instead of absorbing his Divine Key instantly, I devised a plan to overturn his move in our favor." explained the Martial Emperor. This Rune was something that was engraved on Hero of Time's core since Divine Abilities were imprinted on his soul and it would not be able to bear the burden of this rune as well when he was chosen by God of Time and summoned into Vantrea. So the two main requirements were the archaic spell incantation and the core." revealed future Kahn. "By reading his memories, I learned the spell and created a ritual to use his core to perform the same spell and also use the Transcendent Rune of Reminiscence along with it since I wasn't the Hero of Time myself. Hero of Time came to 10 years in time instead of 5 because the spell wasn't performed in a perfect and orderly manner. It sent him to his most suitable time. Which is the same as Conclave of Heroes for you." revealed future Kahn on how the Hero of Time managed to ambush him exactly during the Conclave of Heroes. "How does it work?" asked the current Kahn. "As the name explains itself, Transcendent Rune of Remininscane allows you to remember your memories. But since it was created by the God of Time, it transcends the flow of time itself. For example, using this rune, both Hero of Time and I came back in the past. But if there is a need and everything is planned properly One can even travel to the future." revealed the Martial Emperor.
"All it needs is the divine key aka the core to exist in the future as well. As long as the host is alive, the memories can be sent to the future even if the timeline itself is altered, like the one we have now. You can travel in both the past and future regardless of the changes in the flow of time or events diverging from their original intended path." the future Kahn revealed the real truth about the Transcendent Rune of Reminiscence, that it didn't just cover the past but future as well. "This dragon you see here is the one who sealed both of us inside the transcendent rune.
For him, his original body came with me but for me, it was only the soul and my memories." he explained in detail.
"But the problem was that using the transcendent rune came with conditions. That it couldn't be activated until I came in contact with Hero of Time, the original host of the divine key where the Rune was imprinted in the past. So it would only activate when the Hero of Time made physical contact with me I mean us." he iterated solemnly.
"And then, I chose the time of my summoning right before God of Darkness and Kravel entered the World Boundary. I told them what happened in the future and how the future versions of ourselves planned to negate the danger of Hero of Time coming back since his primary goal was to kill me with the knowledge of the future events.
Also, I explained a few events and how things were changed to both of them." revealed the Martial Emperor. After hearing his words, the current Kahn was not only stunned but absolutely gobsmacked.
"So you were with me watching me since the moment I was summoned in this world?" he asked with a bewildered countenance.
"Yes. But not only that I have been living this new life as well. Because in the end, you and I are the same person with the same soul." explained the future Kahn.
"The only difference is that you were the one in charge of our every action and decision we made in this timeline while I was simply a spectator who could not do anything to help you or influence your mind in any way." iterated the future Kahn in a stern voice.
"Then how come I never noticed your existence?" asked current Kahn.
"Because two of the same person from different timelines cannot exist or control the body at the same time. And since I was sealed inside the transcendent rune, I had no other choice but to watch until the Hero of Time came for us." explained the Martial Emperor.
"Oh, but I did take over the body once and saved us from certain death." spoke the future Kahn with a prideful smirk.
"What?! When?!" asked Kahn, simply stupefied from disbelief.
To his befuddled countenance and the question, the future Kahn revealed when he had appeared for the first time in the new timeline
"When that Undead Lich killed you inside the Bromnir Dungeon."