Supreme_IQ

"Even in oblivion, you all shall tremble at the demon that lies beyond..."

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Beaten, betrayed, discriminated against, and then sent into hell. Those were the words that defined Khan's life, if he ever bothered to think about it.

In a cold world where the hearts of people surged in preparation for the next cataclysm that had the potential to wipe out the entire world, who had the time to care for a feeble, golden-haired anomaly with no memories of his first ten years?

Sent away from the orphanage with the mission to end his life, fate was still not satisfied with punishing him enough. 

He found himself in front of a demon god who raised children into killing machines, known to complete every mission irrespective of the danger.

Among a group of madmen, he was the maddest, given the name "The Hollow" due to his unfeeling attitude.

But in essence, all he ever needed was a place he could call home and when his life flashed before his eyes and he awakened his memories, he embarked on that path.

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"My origin might be ten thousand light-years away from Earth, but even if I have to walk on the corpses of a million to reach it, then so be it..."
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But now he won't be walking this dark path alone:

[Congratulations, the Host has successfully fused with the system.]

[Congratulations, Host has awakened The Bio-Nanotech System!]
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My Bio-Nanotech System

"Oni-Sama..." The hoarse voice, more sinister than that of a demon, rang out through the room, followed by the beastly growl that came from none other than Khan, who lay on the ground on all fours...

"What have you done to me?" Khan said through clenched teeth as he raised his head.

Hundreds of dark veins now coated his formerly white and handsome face, while his golden pupils pulsed with a strange darkness, with dark veins spreading out from them...

"You, Khan, are a weakling because you cannot bite nor kill, but I'll be changing that..."

"What are you becoming, my son, stronger, or weaker..."

"When have you become so weak, my son.."

[Host is being placed under a condition by a powerful being...]

[System overridden will now begin!] [1%...5%...7%...]

[ERROR! System has been forcibly cut off from overridden...]

How Long Has It Been, my son..