Yui, a married woman living with her 48-year-old husband, struggles with his erectile dysfunction and buys hemp rope in hopes of helping him. One day, her husband's subordinate, Nojima, comes by to drop him off while drunk. Nojima becomes instantly attracted to Yui's youth and beauty and can't stop thinking about her. He continues visiting to deliver her husband home. When carrying her husband to the bedroom, Nojima discovers hemp rope peeking out from a paper bag, causing Yui to panic and quickly hide it. Her reaction only deepens Nojima's curiosity and desire.