This series features molestations taking place on packed trains where the girls can't even move. In a packed train, the girls find themselves being pressed up against the buttocks and breasts of strangers, without knowing if it's intentional or accidental. What's more, it's summer, and the girls are sweating each other, raising the discomfort index as the penis presses up against them. Even though they realize they're being molested, they're unable to dodge, and their panties become soaked with sweat and pussy juice...