To cover the hospital expenses for my chronically ill parents, I married into the Ichijo family. My father-in-law, Sosuke, seemed kind and considerate at first, but he harbored a dark, hidden side. During the two days my husband, Yusuke, was away on a business trip, Sosuke and I were left alone together. Those days, I was tied up, whipped on the buttocks, dripped with hot wax, fitted with a collar, and gradually trained under his control. Our marriage was supposed to be loveless, yet lately, I can't help but feel a strange sense of emotional fulfillment.