Hades Seventh Layer.
This was the deepest and largest world.
Its space was simply too vast, and the number of demons too enormous.
Thus, the will of Hades decreed that it would be jointly ruled by the three strongest supreme demons.
They were known as the Demon Kings.
They had once been the gravity demon Lucifero, the spatial demon Beelzebub, and the time demon Astaroth.
Among them, Lucifero was clearly stronger than Beelzebub and Astaroth.
Therefore, beyond his title as a Demon King, he also bore the title of "Satan."
The countless demons of Hades did not dare call Lucifero by his true name.
Instead, they used "Satan" as a substitute.
This showed just how terrifying his authority was.
Later, the time demon Astaroth vanished.
The curse demon Megicula rose to fill the vacancy among the "Three Demon Kings."
Who would have thought that the spatial demon Beelzebub would also disappear just days ago?
Yes, Megicula had announced to the outside world that he was missing, since they could not yet confirm whether he was dead or alive.
Though none of these supreme demons held much hope.
Beelzebub was proficient in spatial magic. If he could have returned, he would have done so long ago.
Satan's Castle.
It was a magnificent structure built entirely of black stone.
Lucifero sat upon the throne atop the high platform.
His scarlet, icy gaze fixed upon the disheveled Moryo below.
After losing to Aramaki, she had dragged her injuries and fled to the far side of the Hades First Layer.
She had originally intended to recuperate while commanding the demon army to reclaim the occupied territory with all their strength.
Yet Lucifugus had brought her before Lucifero.
Lucifugus.
He was not only one of the supreme demons, but also the ruler of the Hades