The existence of Heavenly Demons is documented in the ancient texts left from humanity's Primordial Era.
And ever since the records from the Primordial Era began, there has only been one ruler in the world of Heavenly Demons—Supreme Sky Demon Pandora.
The legendary Pandora has many forms: a massive golden demon form, a cold-aura witch wearing a black dress, an underage loli form, and a pure maiden in a white dress... But no matter the form, she always appears as a female.
This is why only a Holy Daughter, not a Saint Heir, can act as Pandora's Host Body in the Heavenly Demon Palace.
When Golden-eyed Mary suddenly appeared at the scene, Pan Susos immediately recognized that she was no longer the Holy Daughter of the Heavenly Demon Hall, but the true Supreme Sky Demon—Pandora.
"What's wrong? My dear brother, you don't seem happy to see your sister at all." Pandora looked up at the enormous Pan Susos, a slight smile lifting the corners of her lips.
