As Chisato faced this attack, for the first time since the start of this battle, she became serious. There was still no need for her use the powers of a Chaosborn and activated the partial body of universe, but she did need to cover her body with various concepts to create her strongest combat form from before her awakening.
What she and the inhabitants of her universe called concepts, the people of this universe called them fundamental sources. And the lesser concepts of that universe were similar to the secondary sources here.
Then to match the description of the derivative concepts, there was something called Transformed Sources and the super powerful attack used by the Death Overlord used all three of these things.
The base of this move of his was the Fundamental source of time, which was special even among the other fundamental sources. There was also a little bit of creation fundamental source mixed in it.
