Skull

Skulls are the guardians and caretakers of the Earl's Akuma-producing plant. Skulls are humanoids who wear large black robes and have skull-like heads, as their names imply. Skulls are neither Akuma, nor completely human, and are created by transforming a human with a 'suitable' mind using a special form of magic. A Skull places their fingers against the forehead of a victim and chant an incantation. The human is then surrounded by arcs of energy and then shrouded in a cocoon made of a black thread-like substance, finally emerging a few moments later as a Skull. Skulls are very resistant, capable of taking a bullet to the head without any lasting damage. The newborns are quite slow, but the older ones function at a more grown human rate. They have an average lifespan of 200 years. Their duties include cleaning the Noah's Ark, creating Akuma, guarding the egg, caring the Earl's clothes, and other odd jobs.