The first time I experienced sexual pleasure was because of ropes. The pain and humiliation of being bound gave birth to my masochistic desires. The tighter I'm bound, the more sensitive I become, and when humiliated, I get wet—it's a filthy body. Mahiro peeks at her mother and stepfather having SM sex. Seeing her mother's blissful expression while being bound, Mahiro becomes interested in bondage and starts masturbating. While her mother is away, Mahiro gets scolded by her stepfather for peeking and ends up being punished. This becomes the trigger for her training, and Mahiro falls into becoming a rope slave●
