USBA-033 Uniform bondage Mahiro Ichiki's innocent body has learned the taste of rope after being punished and tied up by his stepfather

It was because of the rope that I experienced sexual pleasure for the first time. - The pain and misery of being tied up gives rise to masochistic sexual desire. - Her obscene body becomes sensitive when tied tightly and gets wet when humiliated. - Mahiro peeks into the SM sex between his mother and stepfather. - Seeing the ecstatic expression on his mother's face while she is tied up, Mahiro becomes interested in bondage and ends up masturbating. - When my mother was away, my father-in-law scolded me for looking in on me and I was punished. - After that, the training progresses and Mahiro falls into a rope slave.