In the height of summer, Rin returns to her in-laws' home. However, her father-in-law is hospitalized, and her husband is too busy with work to pay her any mind. At this time, she meets her neighbor Sakamoto and heads to his house while out for a walk... Intrigued by Rin's innocent reactions, Sakamoto sees her chest heaving with sweat and her top gaping open... Unable to hold back, the virgin Sakamoto pushes her down. What started as a joke turns serious, and his fervent caresses make Rin climax repeatedly. And so, during her visit, the two continue to have intense, sweaty intercourse...
