GMA-057 - Boundage training wife. Daily persistent rope training inflicted by her cohabitating step-father. A young wife, Tsukasa Nagano, falls into an inescapable master-servant relationship and experiences the blossoming of masochism.

Her husband's mother passed away, and a decision was made for her to live with her step-father. However, Tsukasa felt uneasy about this cohabitation due to her step-father's unpleasant gaze. As expected, once they started living together, her step-father would touch her body while talking, or even reach for her groin while claiming it was a massage. When she consulted her husband, he would only respond casually, and Tsukasa began to consider ending the cohabitation. Sensing this, her step-father began to plot, thinking 'it would be better to train her early on...'