Rika Fujii is forced to work two jobs to pay off her father's debt and her little sister's tuition. In the daytime, she works a desk job. At night, she dons a cocktail dress and works as a hostess at a cabaret club. Rika's packed schedule soon takes its toll, and she collapses from exhaustion in the middle of her night shift. When she comes to, she is in a hospital bed, looking up at the comely face of Dr. Shuya Sanohara, who upon learning of Rika's unfortunate circumstances makes a proposal! He is looking for a bride who will stay by his side and sate his almost limitless sensual appetite. In return, he promises to settle Rika's debt. "Why don't we give it a try?" he says, and Rika agrees. And so her new life begins...