Due to Du You's actions, the other demons sped up their pace as well.
Regardless of anything else, at least some of the fringe ninth-tier worlds need to be incorporated. Previously, leaving them outside was not an issue, as there was no fear of anyone causing trouble, and it allowed the abyss to expand its absolute control step by step.
But now it's different, as there's someone who is unafraid of threats causing havoc everywhere.
The demons rushed to inform each other, contacting higher-tier demons one by one. After all, they are acquainted with some of them. Powerful demons are not uncommon in the abyss; it's just that they wouldn't come together.
After all, if grouped together, given demons' chaotic nature, even ninth-tier demons of the same rank would start fighting.
This place is Suharari's territory, hence other late-stage ninth-tier demons won't come over. But if trouble arises, and the abyss urges them, this tier of demons can be negotiated with.