Lobelia's childhood period was nothing but poverty and misery, but he happened to attain an enormous amount of assets for some reason. It totally turned his life upside down and he had fulfilled his wishes one by one without experiencing any inconvenience. Years later, Lobelia's wishes are seldom left unaccomplished. One day, he finds a document in his mansion's library. The document turns out to be a written contract of debt between his passed away parents and a certain shop owner. He soon starts investigating the shop. After the inspection it appears that the shop is currently run by an only daughter of the former owner of the shop who died. Also, her repayment is often delayed. Lobelia is tired of buying prostitutes because it's no more than purchases. But having that situation with a huge difference in social classes and wealth, he expects a realistic sense of domination toward that pure and innocent girl. Lobelia viciously grins at the document of debt. "I'll make this girl into my obedient slave......"