Excerpt from the Italian mage Alberto Ricardo's Book, Demon King, 19th Century
......To those who accomplished this formidable feat, I grant them the title of Campione – Godslayer – .
Among all virtuous readers, some will probably believe that I over-exaggerate with that title and frown, while others will think that I am making undue fuss over it.
However, I want to emphasize it, once again.
Campione – Godslayer – is the supreme ruler.
Since he can kill a celestial being, he can therefore call on the highly divine powers held by the gods.
Campione – Godslayer – is a lord.
Since the power to kill a deity is in their hands, they therefore have the power to dominate the mortals on Earth.
Campione – Godslayer – is a devil.
Therefore of the entire humanity living on earth, those who have the power to oppose them do not exist!