King Arthur

Without a doubt, Jacob's birth was the culmination of Azerath Engineering and the One Piece World's Bloodline Factor human modification science.

The cutting-edge technologies involved, along with the expensive raw materials, made even the "wealthy" Allen feel a pang of pain. The process had even come close to failure several times.

Fortunately!

Demiurge was not an Ordinary Person, but a demon whose mind would not collapse no matter how terrible the pain he endured.

That was precisely why the modification had ultimately succeeded.

Had it been a human, the instant they endured the agony of their soul being torn apart, they would have immediately collapsed completely, turning into energy and fragments without any consciousness or form.

Of course, Allen had done this mainly because he loathed the mad, twisted, evil, anti-human thoughts in Demiurge's mind and wanted to erase them permanently.

If he had simply killed him by ordinary means, Old Bones might have been able to revive him using the World Item in his possession—the Cup of Hygieia.

After all, Hygieia was the daughter of the god of medicine in Greek mythology, and herself a goddess representing health and medicine.

The Cup of Hygieia should have referred to the bowl-shaped dish this Goddess used to hold medicine. Even if it possessed the ability to revive someone unconditionally, that would be perfectly reasonable.

Therefore, to ensure that Demiurge could never be revived, Allen had adopted the cruelest and most extreme method.

In this way, even if his other half were tortured to death, no item in YGGDRASIL could revive him.

Because this guy had not truly died completely. Half of him was still alive inside Jacob's body in another form.

Of course, to Jacob, whose soul had been completely torn apart and reassembled, the name Demiurge no longer held any