Lucien, the knight captain who cannot use magic, is ordered to escort the saintess to the royal palace. But that mission involved working with Arkride, the captain of the Magic Knights, who is known as a ruthless elite! Arkride would glare at him and make sarcastic remarks at every opportunity... He's sure he hates him, but doesn't the sense of distance between them seem a bit off? —So what the hell is this "mating contract magic"?! A BL story begins featuring a sadistic, handsome, polite seme and a black-haired beauty who is easily swayed!