The Ancient Godlight is merely a metaphor, a metaphor that both Ange and Anthony can understand, referring to the awareness of the God Star.
Now they had encountered three God Stars—the one on the Chaos Plane, Gemez Fortress in the distant Void, and the one before them. Initially, they believed this one lacked consciousness, but they didn't expect that it actually had awareness, albeit imprisoned.
Isn't this awareness comparable to the Ancient Godlight of the Chaos Plane? The one that fought Ange's true body for decades, only to be forcibly drained and defeated by leveraging the accumulation from the Dimensional Space?
Everyone understood Negris's implication. Anthony's heart tightened—if the opponent had the power of Ancient Godlight, could they possibly outlast it without Ange's true body present?
The Star Progeny Master could imprison a being of Ancient Godlight's level—could it be that he had some hidden, untapped abilities?