He couldn't feel.
The different fragments of his soul split apart like how a wooden plank would be broken.
His body, he realized, was now torn into half, seperated by a large crack in the middle, yet held together by wispy strands of determination.
He was too determined to let go, for his own sake. He had Sans and Papyrus to take care of, and research to continue! Hopefully Alphys would be just fine on her own continuing the projects he had started yet never finished.
He let out a deep, long sigh, now realizing that the sounds he made were recorded into a language he knew but never understood.
WingDings
Now he knew why he was here. He had absorbed too much determination from the machine, and in turn, made himself the most powerful being to ever exist. That power came with a curse, binding his soul into the void, exiling him from the living dimension. He wasn't sure if he could ever come back, but he had to try.
For Sans and Papyrus.
They were only three, yet they had to live without any parents, without a family except each other to keep company with.
And he had an idea, at that very moment, that could possibly overturn reality itself, but he had to try.
He would extract their souls and place their empty bodies into the future, when Asgore declared war.
Hence, his living children would literally be the walking dead, while their souls would stay here and so he could take care of them.
Wonderful, wasn't it?
A/N: This is just the beginning...
THE FALLEN HUMAN TAKES THEIR PLACE,
THE MURDERER SHALL BE AVENGED.
LIGHT AND DARK SHALL MEET THEIR MATCH,
AS THE WORLD AROUND THEM TURNS TO ASH.
BLUE AND ORANGE SHALL UNITE,
TO DESTROY THE KILLERS OF THE KNIGHT.
FATHER AND CHILDREN SHALL BE UNITED,
IN THEIR BID TO SECURE THEIR SOULS.