Celestial Plane, inside Kurohana's plane.
Quite some time has passed since Kurohana had checked on Aurus's progress in terms of his evolution. At the moment, both Kurohana and her clone, Shirohana, were sitting near one of the corners of her white cube as their understanding over the Greater Law of Reincarnation had vastly improved since the last time she checked up on Aurus.
Compared to the power they exuded before, the power the two of them were exuding when combined would definitely scare most Greater Gods at the stronger end of the spectrum, with Nix even probably becoming surprised that Kurohana had reached such a level.