Ancient Devils could change the past using the imprints they had left on the timeline.
Theoretically, as long as an Ancient Devil had traced their timeline back far enough, leaving their imprint on the moment the Origin Sea was created and reaching the Absolute Beginning, they could take action and destroy everything.
That would effectively kill all the creatures that should have been born in the future.
Of course, no Ancient Devil had ever done so.
Not only because that would certainly attract beings of a similar level who would step forward to stop them, as well as the Princes and Princesses of the Demon World, but also because of another reason.
Changing the past did not come without a price. Every time an Ancient Devil changed something, they would directly suffer backlash.
Not from the Demon World, but from the entire Origin Sea and the Supreme Laws that governed it.
For such a large-scale alteration, there was no way a mere Ancient Devil could survive.
