In the midst of a dissolute life squandering my inheritance, I called a call girl for sexual gratification, only to discover she was Nakayama Fumika, the plainest girl in my middle school class. Stripping off her clothes revealed her violently large breasts, far more developed than they were back then. Not wanting our relationship to end as just a call girl arrangement, I made an exclusive contract with her, bypassing the agency, transforming her into a "convenient woman" who would immediately spread her legs naked whenever I called. My pent-up sexual desire...