Oscar Orcus/Relationships

Karg D. Verand
Topp is Oscar's foster father and mentor. He is aware how talented Oscar is as a Synergist, and feels that he is wasting his talents by working in the former's blacksmith.

Moorin
Moorin is Oscar's foster mother. Oscar loves her very much and is always concerned for her safety.

Ruth
Oscar's little brother. Ruth looked up to Oscar while they both lived at the orphanage. He learned the basics of being a Synergist from Oscar and aspired to be like him someday. After Oscar began working at the Orcus Workshop, Ruth lost his respect for him and treated him badly due to Oscar not using his abilities to create weapons or anything that Ruth considered to be impressive. After Oscar rescued him and the other children from the Holy Church, Ruth regretted how he treated Oscar after seeing all of his powerful Artifacts and regained his admiration for him.

Dylan
Oscar's younger brother. Someone who he cherishes greatly.

Katy
Oscar's younger sister. He is one of the few people that she opens up to. Although she may act cold around him at times, she secretly wants to be pampered by him. After regaining consciousness from being experimented on by the church, she would spend a lot of her time clinging to Oscar whenever she had the chance.

Corrin
Oscar's little sister. Someone who he cherishes greatly.

Miledi Reisen
Oscar and Miledi have a complicated relationship. Although she regularly annoys him with her antics, he will follow her anywhere, even if she were to to go the depths of Hell itself. He also greatly cherishes her.

It is implied that the two probably have feelings for each other, but neither admits it.

Naiz Gruen Caliente
Oscar and Naiz get along rather well, spending hours talking and playing games, much to Miledi's annoyance. Despite the friendship, Naiz is sometimes disturbed by Oscar's occasional cruel use of his artifacts on his enemies that borders on torture.

Vandre Schnee
He and Vandre can't see eye to eye on anything, constantly getting into verbal spats. In truth, the reason for this is that they're so similar in terms of their histories. Vandre is a clan chief, yet he is belligerent. While Oscar acts knowledgeable, but he was raised in the slums of a city. They don't like what they see when they look at each other.

Ping Waress
Ping hates Oscar due the constant attention that Karg D. Verand gives him, while under the impression that he is nothing more than a failure. He would bully Oscar every chance he got, as well and have him deal with his workload in addition to his own. While Oscar is not happy with Ping's treatment towards him, he does not try to fight back and does everything he can to placate the young noble. This, however, only serves to intensify Ping's hatred towards Oscar, which eventually leads to him kidnapping the orphans from Oscar's old orphanage.

Ehit
Like the Liberators who learned of the Gods, Oscar was one of Ehit's archenemies from the faction. After his fellow Liberators were unable to start a revolution against Ehit due to instigating his worshippers to hunt down the Liberators, Oscar helped his fellow Liberators to create their own respective Great Labyrinths including his own Orcus Labyrinth with his Creation Magic as a means to pass down the Liberators' Ancient Magic required to slay Ehit and destroy his "game board" once and for all which ended up to success when Oscar's first Ancient Magic successor Hajime Nagumo slayed Ehit and his game of death is destroyed with him.

Hajime Nagumo
Although they have never met, Hajime learns the truth about the gods of Tortus through Oscar's message, which allows Hajime to realize the true danger of the predicament behind Ehit forcefully summoning him and his classmates to Tortus. Hajime holds immense respect for Oscar's genius skills as a legendary Synergist, as well as using Oscar's collection of historical documents, notes, alchemist tools and artifacts in his hidden lair to further advance his own Synergist skills. He considers Oscar as his unofficial master, and aspires to surpass him. Furthermore, Hajime takes it upon himself to fulfil Oscar's legacy with regards to creating the perfect maid golem.

However, after listening to Oscar's recording, Hajime immediately treated Oscar's corpse like it was nothing and even went as far as rustling the clothes to check for anything worth of value other than the ring on his finger. Yue, who was next to him, suggested making Oscar's corpse as fertilizer for the field. This was most likely due to his suffering in the labyrinth, but still decided to give Oscar a proper grave. After returning to Japan, Shuu and Sumire scolded Hajime for disrespecting the dead.