Idol Rabier/Relationships

Naofumi Iwatani
Like most Melromarc noblepeople, and also like a typical follower of The Church of the Three Heroes, Rabier had a profound hatred for the two most loathed entities in all Melromarc: the Shield Hero and the demi-humans (whom Naofumi had a natural affinity for), crediting the former as "a devil bent on tarnishing the world", and also proclaiming himself to have "a holy duty of purging the world from the evils of the Devil of the Shield and his filthy demi-humans". Such hatred was so irrational and intense, Rabier was fully willing to torture and kill even his own kind if these sided with or supported the Shield Hero and the demi-humans in any way, as seen when he captured and nearly killed Van Reichnott by physically beating him.

Aultcray Melromarc XXXII
He aided Aultcracy in many wars against the Siltvelt nation. Both men shared a mutual hatred towards demi-humans and the Shield Hero. He was willing to kill Aultcray's daughter for his demented religious belief.

Raphtalia
Little is explicitly known about his relationship with Raphtalia, except for the pain and suffering Rabier inflicted on her via torture on a daily basis, gaining a sadistic pleasure with such cruelty (pretty much as he used to do to every demi-human unfortunate enough to fall in his hands). However, these sickly dynamics changed for good when an enraged Raphtalia returned months later and turned the tables on Rabier, revealing him to be a real coward who pathetically begged for his life when she one-upped him at sword-point.

Melty Q Melromarc
He declared that it was "his duty to save Melromarc from falling into the Devil of the Shield's hands", and accuses said "devil" of trying to get his way to the throne by raping Melty. After meeting him, Melty began to approve all of Naofumi's brash decisions, stating that for those who act brash, a counteraction at height is needed. While being his "guest", Melty had given visible signs of not liking him at all.

Van Reichnott
Though not much is explicitly known, it cannot be said Rabier's relationship towards Reichnott to be civil or amiable, as the former captured and submitted the latter to violent physical torture, in order to make him give away the whereabouts of the "Devil of the Shield" and his friends.