Dead Apostles literally meant "those already dead." They were essentially humans transformed through certain processes, originally emergency food prepared by the True Ancestors.
Humans prepared by the True Ancestors in case they could not suppress their bloodlust. To prevent them from escaping, the True Ancestors drank their blood and placed them under their control.
They each formed their own factions, competing for power despite being of the same kind.
Dead Apostles generally had a parent, someone who could be considered their superior and whom they had to obey absolutely as their guide.
Jester Karture naturally had a parent as well, but their relationship was terrible. The other party might not even remember he existed anymore.
Jester Karture had lost most of his power, a side effect of being disowned by his parent.
Flat Escardos raised the phone in his hand. A familiar voice came from it: Van-Fem, the Fourteenth True Ancestor and his direct parent.
"Sorry, dear Jester Karture. Lord El-Melloi II once did me a favor, so I can only wrong you this time." The other party maintained a flippant tone throughout.
Jester Karture roared, "Van-Fem, I will never forgive you."
All he got in return was the "beep beep beep..." of the disconnected call.
It was a powerless roar, seemingly marking Jester Karture's end. Then, a massive amount of mana suddenly flooded into the Holy Grail directly above him, and filthy Black Mud overflowed from it.
It all happened too suddenly, without any warning. Theoretically, there should not have been much mana within the Holy Grail, as though it had abruptly been forcibly stuffed in from somewhere else.
The sludge pouring from the Holy Grail completely submerged Jester Karture. No one noticed that the magic circle deeper underground had begun reacting with mana.
At the same time, the