I, a Slime, have also dreamed of becoming a great Demon King!

The vast Dream Sea, atop layers of miracles and magnificence, where Transcendents walk the ascendant path guided by their ultimate longings as if by beacons.
The supreme beings wielded power, their greatness shining in all directions, ascending to divinity.
But even deities were not the ultimate. They too struggled for greater perfection and ideals, endlessly, within the Void Origin, above the Dream Sea.
"So... Your Majesty Ybur, as the most powerful Slime in history, what exactly drives you to become stronger?"
Many years later, when faced with the question from a Heavenly envoy, Ybur, who by then stood at the zenith of the Dream Realm as the "World Devourer," recalled the afternoon just after his birth when the Creator had stuffed him down a golden toilet and flushed him into the sewers in one go...
After a long silence, he spoke with a heavy tone:
"It's the toilet. The golden toilet."
The envoy: "???"