Rin becomes the housekeeper of Atsushi, a young adult man who lost both parents. Though he keeps everyone at a distance, she patiently cooks, cleans, and tries to earn his trust. Focused on her work, she never realizes how much her sweaty cleavage and full, soft ass tempt him. One day, a downpour leaves her clothes soaked and transparent while shopping. She tries to resume her chores, but Atsushi sees her, forces himself on her, and pulls them into intense, sweat-soaked sex.