Although the Netherworld was not born as long ago as the countless universes in the great world, the fact that it has only broken through thirty-six layers of heaven over a lengthy period of time shows the difficulty of the endeavor.
The True Martial Saint Lord estimated that the difficulty of breaking through the new layers of heaven in the Netherworld was only harder than that of ordinary universes, and certainly not easier than breaking through new layers of heaven in ordinary universes.
Moreover, he surmised that the difficulty of continuously breaking through new layers of heaven would also be as difficult as in the ordinary universes—extremely, extremely challenging.
For the Blood Emperor to have successively broken through eight new layers of the Netherworld's heavens was something one could only marvel at.