All things are created from the High Father, for the High Father, and return to the High Father... eventually".
- Book of the Solan Church
A hierocubus is a servant of the High Father, Solus, and is the angelic mirror image of a succubus. Where as the succubi corrupt the innocent with lust, the hierocubi redeem the wicked with love. Demons, lost souls, and on very rare occasions evil mortals; all are counted among the hierocubi's quarry. Often deployed by higher angels, they focus in on a single target who's soul belongs to Noxious, the Dark God. Their forms change to match the desires of their prey, every part customizable to best appeal to them.
Once they mark their prey, they use their powers and divine charisma to bond with the creature and have it fall madly in love with them. Depending on the willpower of the creature in question, this could be instantaneous, or it could be a process that takes countless years. When a mortal is preyed upon, few ever even realize until after death that it was a hierocubus and not a fellow mortal that was seducing them away from the path of evil.
If they fail, the hierocubus will mourn for the lost soul for many years, as though they had lost a dear loved one. If successful, a hierocubus will bind itself eternally to the creature, remaining its sole lover for all eternity and indenturing it forever to the High Father's will.