Living in the countryside at her parents' home, Shiori spends her days without much excitement. She is interested in H things and feels restless from the information and videos she finds online. One day, her sister's family visits for a rare homestay, and the house is already bustling with activity. That night, after dinner with her family, Shiori sees her drunk sister's husband's penis. Even without an erection, it shocks her with its impressive size. After that, Shiori's mind is filled with thoughts of her brother-in-law's penis, and she eventually sneaks into the room where her sister's couple is sleeping.
