Under the scorching sun, the train becomes even more sweltering. Packed tightly with people, the air grows heavy, making it hard to breathe. In this suffocating environment, the molester's hidden hand slips between a woman's bare skin and her clothing, creeping in unnoticed. Caught between disgust and pleasure, her skin glistens with sweat. The pressing body heat and constant contact bring both discomfort and strange arousal, causing her body to grow even hotter.