"I see. If that makes you feel better, the Shadows would have merged together eventually. You only greatly hastened the process."

But that wasn't what they were here for. He refocused, and continued his story.

"In any case, in that experiment, right before Death got torn into pieces by a remorseful scientist, it glimpsed into possible timelines, and saw the Seal isolating Nyx from humanity's will, defying natural order."

Ken smiled a little.

"Now, Nyx as a whole doesn't really care about this "natural order", but one of the fourteen fragments of Death did. It tried to devise a solution to ensure the Fall would happen regardless of interferences."