To have seized control of the souls of all beings—even if it's still uncertain whether he controls their lives and deaths—this alone is already an astonishing feat.
And there's a lot that can be made of that.
Which is why the Lord of the Dead Spirits is an extremely dangerous existence.
Because once a person stops being content, all sorts of things will be born from that.
It's like someone holding nuclear weapons in his hand, while constantly provoking others—he's a walking hazard.
The Lord of the Dead Spirits is very much that kind of person.
He controls the souls of all beings, and though he seems mild and amiable on the surface, he hides his depths well.
Especially the Netherworld Realm—ordinary people can't enter; only the dead can.
And even if you do enter, you can't get out.
That's why the Netherworld Realm has always been shrouded in mystery.
If the Lord of the Dead Spirits does something, chances are others will find it very hard to know.
