According to the Heavenly Emperor's explanation and speculation, given the size of the Limitless Demon Sect, there's no way they could restore the entire Netherworld Realm into a Demon Empire. Most likely, they just want to take advantage of the blank period with no ruler in the Netherworld and carve out a little "Demon Empire" there for their grand plan.
It's certain that, if the Demon Empire gets established, the Limitless Demon Sect will benefit big time—maybe their overall strength could even level up. But the Limitless Demon Sect folks would never imagine… that the current rulers of the Netherworld Realm actually number two.
Reality always hits you hard enough to make you cry.
Fat Ball is gone, but there's still the Netherworld's resident, Senior White TWO. Not to mention, several "former Netherworld Rulers" are lurking in the shadows—like Senior Scabbed Dragon, Senior Three-Eyed.
