Interesting terminology for subordinates, where the demon lord outranks "7 demon emperors" who are just rebranded and expanded "4 heavenly kings"; functionally they are like elite executives of the demon army.
I don't quite like how the reader is being treated like a physically present eavesdropper in this chapter; we are shown scenes of conversations where characters either suddenly whisper in hushed, barely perceptible tones as if someone was listening in, or make vague references to insider information that probably everyone else already knows.
Heck, both the old and new demon lords are still unnamed to me. Can't even spare a box to show me their names?