Tsuma ni Damatte Sokubaikai ni Ikun ja Nakatta

Yumiko's husband is frequently away on business trips during holidays, leaving her feeling isolated. While he is absent, she discovers an explicit adult manga in his personal space. This finding surprises her, as she had not considered her spouse to have such inclinations. The material stimulates her, and she begins to engage in solo sexual activity while fantasizing about scenarios from the book. During this private moment, an unfamiliar young man unexpectedly appears. Despite the aggressive nature of his subsequent advances, Yumiko finds herself succumbing to her own heightened desires.