Katon Bagaskara has chosen Karin Nevada as her bride-to-be since Karin was still in the womb of her mother, Laksita. If Karin does not want her parents to die, she must marry Katon. As a devil bride, Karin's allure will captivate men. Until one day, when a bad man felt compelled to murder Karin's father in order to marry Karin. Cerberus, Katon's dog who was guarding Karin, fortunately saved her. Then James, Katon's personal assistant, takes Karin to the world of the demon lord. But Karin had no idea who her husband-to-be was at the moment. Katon initially seduces Karin in an attempt to make her fall in love with him. And when Karin began to like Katon, Katon's attitude changed to the point that he purposefully made out with his lover, fellow demon lady Stefani Maura, in front of Karin. Hendery Damon, Katon's eternal rival, unexpectedly approaches Karin after learning that Katon had dumped her. Katon challenges Hendery to a duel to the death, and whomever loses must marry Karin.