Five years into their marriage, the Suzumiya couple's relationship wasn't cold, but their nightly activities had stagnated. The husband tried to break the monotony with cosplay and other methods, but his wife Mari was always restless. Her brother-in-law Shinsuke, who occasionally visited, noticed this and pushed her down in a moment of weakness. Mari secretly hoped to be taken by the robust Shinsuke, and her frustrated body began to moan despite her resistance...
