데미우르고스

Demiourgos, the Sept-Terrion of Mirage.

Demiourgos (虚ろなる神(デミウルゴス)), also known as the Hollow Phantasm, is the Sept-Terrion of Mirage and one of the Seven Sept-Terrion bestowed by Aidios. The Holy Beast sworn to protect the Demiourgos is Zeit, the Divine Wolf and the group that watch over Demiourgos is the Crois Family.

It was situated in Crossbell before it erased itself from existence. Attempt to recreated it after it vanished was later achieve through a recreation known as the Sept-Terrion of Zero as part of the Azure-Zero Project and in essence part of Ouroboros' Phantasmal Blaze Plan.

Demiourgos later manifests as the true final boss Genesial Demiourgos (創星のデミウルゴス) in the artifact-accessed dimension of 영웅전설 시작의 궤적, during Coda: Beyond the Reverie.

Background

Demiourgos, the Sept-Terrion of Mirage, originally situated itself in the territory now known as Crossbell. Mirage governs perception and cognition, and controls causality.

The people with the Crois family at its centre desired a deity on earth instead of Aidios, the goddess in the sky. Demiourgos guided mankind by understanding them and everything on earth, and controlling causality. At a glance it may be similar to the Aureole, the Sept-Terrion of Space, which tirelessly fulfilled mankind's desires. Demiourgos, however, was bestowed with dignity and therefore did not make this same mistake. It possessed the wisdom and judgement to properly guide the people without further corrupting them. It would have done so, had its 'heart' not reached its limit.

Demiourgos worrying.

Understanding and being able to guide all human personalities, actions, and irrationality would require 'feelings' (or empathy), like humans have. This led to a gradual deterioration of Demiougoros's 'heart' and it fell ill. Realising that at this rate it would go out of control and harm the ones it ought to protect, it decided to cease the causality of its own existence and disappear from the world.

Revival

Since its disappearance, the Crois family feared the loss of their power and dedicated themselves to creating a replacement for the centuries to follow the Great Collapse. During the 8th century, after a long period of experiments, they ultimately decided on alchemy as their method of choice and prepared a plan that would span multiple centuries to complete. They formed the D∴G Cult and entrusted it with the core, a homunculus referred to as KeA capable of containing the reborn Demiourgos. While the D∴G Cult was tasked with awakening the core, the Crois family themselves focused on banking in order to gather the financial resources necessary for the final phases of their plan.

Ultimately, their creation was the Sept-Terrion of Zero (零(ゼロ)の至宝), a human-made Sept-Terrion composed of a revived Demiourgos with the homunculus KeA at its core. In addition to governing mirage, the Sept-Terrion of Zero also gained control over the two other higher elements, time and space. This allowed it to alter the history and fundamental principles of the world at will, which it used to change the fate of the Special Support Section. The scene displayed at the very beginning of 영웅전설 제로의 궤적 displays their fate as being killed by Joachim Guenter at the Sun Fort, which was manipulated by KeA into having Renne and Pater-Mater intervene and allowing the Special Support Section to survive.

The exact extent of this manipulation by KeA is unknown.

Beyond the Reverie - 영웅전설 시작의 궤적

Hello there, beautiful. May I have a moment of your time?

Please be aware spoilers for 영웅전설 시작의 궤적 may be present in the following section. Hit [Show] on the right if the show must go on. Adios, amigos!

Demiourgos manifests due to the contradictions induced by the Elysium singularity. She is the final extra boss of the True Ending. After she is defeated, she thanks the people for freeing her and feels relieved as she can finally go into slumber.

There we go, the end of spoilers. Thank you for your time!

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Trivia

• In Gnosticism, Demiourgos (or Demiurge) is a heavenly being and subordinate to the Supreme Being. The Gnostic Demiourgos is considered to be the controller of the material world and antagonistic to all that is purely spiritual. Other related terms derived from Gnosticism are Gnosis and Pleroma.
• Demiourgos appears as a key character in 영웅전설 시작의 궤적.