"This is..." Xu Muyu frowned slightly; this was not caused by the plane itself, but by the arrival of an extremely powerful entity.
The rules of this plane originally suppressed everyone's strength below that of the Nine-Colored Great Sovereign. Once someone dared to break through to the Nine-Colored Great Sovereign level within this plane, they would be eradicated by the plane's rules. And those stronger than the Nine-Colored Great Sovereign could not step foot into this plane at all.
A dark cloud slowly approached from the edge of the sky, its overwhelming pressure directed towards the nine heavens and Xuli, compelling these two, the strongest on Mandala Land, to kneel down at this moment.