Director KIM Normal's first full-scale BDSM drama. A husband invites his classmate, a professional rope master, to train his wife, driven by the desire to keep his wife Hisayo's feminine side from rusting. As their everyday life gradually unravels, Hisayo becomes possessed by the allure of rope, sinking deeper into submission. Bound tightly, she experiences candle play, reaches climax under the lash of the whip. A milf's eroticism surges forth as the couple's relationship crosses into uncharted territory.