Demiurge thinks of him as an omniscient Supreme Being, believing that Ainz is able to foresee through everything ahead of time, even before he thinks of it. In a way, Demiurge concludes that everything Ainz has been doing until now must be part of a larger goal in mind for the future. This is while thinking of Ainz as a wise ruler, who always continues to plan one step ahead of him than even he can't expect nor predict what may happen next. In awe, it would sometimes cause him to be overwhelmed with admiration and respect towards Ainz.
Offering nothing but praise towards him for what he does independently, Demiurge also tends to seek out praise from Ainz himself. He tends to describe Ainz as someone who is a peerless and perfect master due to his own plans being overshadowed so easily than initially prepared by him. He also believes that there is a reason why no one else was worthy enough to have led the guild and other Supreme Beings, but Ainz alone. Demiurge also cares for his safety, as shown when he wants to stop him from fighting Shalltear for fear of his possible death.
Ulbert is Demiurge's creator and thus has imprinted much into him. As with the other NPC, he greatly respects his creator as his god and found strength and happiness in his sole memory. Demiurge embodies Ulbert's obsession with evil, taking pride in the things he has created like the floor area that is guarded by him. He also greatly values the items created by Ulbert, but is disposed to use them, reluctantly, for the sake of a plan that can benefit his current master, Ainz Ooal Gown. Demiurge considers the suit that he wears to be an important item from his creator. Even though Demiurge’s domain is a ruined temple, he considers this temple to be the embodiment of Ulbert's appreciation and love for him. Despite his loyalty to Ainz, it's shown that his true loyalty and allegiance remains with Ulbert. During the time when he is making stories to about Ainz in order to make the humans more loyal to him, Ainz feels that what Demiurge really wishes for is the return of his creator one day.
While Albedo is the Overseer of the Floor Guardians, Demiurge is in charge of the defense of Nazarick. As their stations overlap each other, he often serves as Albedo's second-in-command. In more ways than one, he also acts as a mental compass to his superior, making sure she stays focused on the tasks the Guardians are assigned by their master. Despite her rank as Overseer, Demiurge is not above using force to make her come to her senses when she has one of her romantic episodes with Ainz. She is also one of the two people in Nazarick whose actions and thoughts he cannot read.
While seemingly uncaring towards the True Vampire, Demiurge does somewhat care about her. When Shalltear begs for forgiveness for her betrayal at Ainz's feet, Demiurge uncharacteristically manages to shed a single tear of sorrow at seeing his comrade being brought low. Both of them share similar interests.
As a fellow Floor Guardian, Cocytus is a colleague and, at the same time, a rival. Despite their rivalry for Ainz's attention and praise, they have a stable work-relationship. They are civil to one another and are considered drinking partners at Sous-chef's bar on the 9th Floor of Nazarick. He provides advice and insights on Ainz's orders to Cocytus. He even goes out of his way to support Cocytus' request in sparing the lizardmen after his comrade's failure.
Demiurge trusts Aura when it comes to someone to watch over Albedo and Shalltear.
Demiurge is on incredibly good terms with Mare and considers him an apprentice of sorts. Demiurge is impressed that Mare not only possesses sharp intellect, but hides that intelligence behind a super shy exterior.
Due to a conversation with Mare about the way he dresses and that it was the will of Bukubukuchagama, Demiurge is convinced that the Supreme Beings think all boys in Nazarick should wear female clothes.
As the chance to meet Victim is rare, they do not see each other often. Despite this, they maintain a cordial and respectful relationship.
Demiurge says that he cannot help but envy Pandora's Actor, even if just a little for the hard-work Ainz has done as its creator.
Like Sebas' creator, Touch Me, and Demiurge's creator, Ulbert Alain Odle, they don't get along. Most likely because of their moral standing, rather than Touch Me and Ulbert often arguing over guild matters. For unknown reasons, Demiurge has curiously taken an interest in Sebas' relationship with Tuare.
Yuri works alongside Demiurge in his plan to make Momon a national hero. Yuri plays the role of one of Jaldabaoth’s servants and fightd against Evileye alongside CZ2128.
Lupusregina workd alongside Demiurge in his plan to make Momon a national hero. Lupusregina playd the role of one of Jaldabaoth’s servants and fights against Nabe alongside Solution and Entoma.
CZ2I28 works alongside Demiurge in his plan to make Momon a national hero. CZ2I28 plays the role of one of Jaldabaoth’s servants and fights against Evileye alongside Yuri.
Solution agrees with Demiurge that killing Tuare is the best option to take. During the events of the demon invasion, Demiurge wants to put Solution in the reserve team, but instead places her alongside Sebas due to her superior detection abilities to find the kidnapped Tuare.
Solution works alongside Demiurge in his plan to make Momon a national hero. Solution plays the role of one of Jaldabaoth’s servants and fights against Nabe alongside Lupusregina and Entoma.
Demiurge saves Entoma from the members of Blue Rose, Evileye, Gagaran, and Tia. He asks her to create illusions in the Kingdom for his plan, Operation Gehenna. Entoma also participates in his plan to make Momon a national hero. She plays the role of one of Jaldabaoth’s servants and fights against Nabe alongside Lupusregina and Solution.
After killing Gagaran and Tia with one blow, Demiurge asks Evileye why she teamed up with weaker companions, stating that she will be able to challenge higher-level areas. Demiurge fights against her and then retreats once Momon shows up.
Demiurge killed Gagaran with his skill, Hellfire Wall. He was surprised that Gagaran and Tia were killed by flames of such a degree, saying that he was only trying to stop them. He offered his remorse to them, which only made Evileye nervous.
Demiurge killed Tia with his skill, Hellfire Wall. He was surprised that Tia and Gagaran were killed by flames of such a degree, saying that he was only trying to stop them. He offered his remorse to them, which only made Evileye nervous.
Demiurge meets the Golden Princess in the Royal Capital before the initiation of Operation Gehenna. Demiurge expresses nothing but a keen interest in and praise for the human princess, perhaps due to her advanced intellect that far outshines her from her own species. His praise for her goes further to even recommending her as an invaluable asset to Nazarick.
The Evil Lords are Demiurge's personal bodyguards. Demiurge orders them to summon an army of demons in the Royal Capital of the Re-Estize Kingdom for his plan, Operation Gehenna.
Demiurge is one of Sous-chef's regulars at the bar.
At some point, Gondo had spoken with Demiurge. From his conversation, the demon is left with the impression that Ainz can seduce anyone to his side through his words and genius.