So the image attached to this post is the pictures of Level 100 NPCs with Ainz at the top. So there's Albedo, Aura, Mare, Shalltear, Pandora's Actor, Demiurge, Sebas and Cocytus. But to the left of Shalltear, we find a character wearing some sort of Japanese dress, which we later find out to be Aureole Omega. Okay.
Now can anyone check what the heck is that to the right of Mare? At first I thought it was Mare's staff, but then saw differences in their shape. Perhaps that is another NPC? Or something else?
On my side, I don't mean to escalate matters quickly, but could that possibly be... the most powerful entity in Nazarick... Rubedo? *dun dun duuuuuuuuuunnnn*
I'd like to know others insight on this.