Demiurge

Demiurge is the Floor Guardian of the 7th Floor of the Great Tomb of Nazarick, the Commander of the NPC defenses, and the 2nd in command of the Floor Guardians. He is the creation of Ulbert Alain Odle.

In the New World, under the guise of a powerful Demon Emperor known as Jaldabaoth, he led his demon army to and started a battle in the Royal Capital of the Re-Estize Kingdom, and also led the demi-human coalition in an assault on the Roble Holy Kingdom before switching places and giving the "Jaldabaoth" persona to demon summon.