The underworld was a very mysterious existence. Of course, that was only for the ark continent, and the demon world had some understanding of the underworld.
It could be said that the relationship between the underworld and the demon race was very similar to the relationship between the God World and the ark continent, but it was not as strict. It could be said that the demon world was the lower realm of the underworld, but not entirely the lower realm of the underworld. If the two worlds really fought, the demon world would not be afraid of the people of the underworld.
It was precisely because of this that the devil World had a very good understanding of the netherworld. The strength of the netherworld was extremely powerful. If the devil race wanted to defeat the netherworld, the price they would have to pay would be too great.
