Ruka is persistently molested by a group on a crowded train during her commute. They deprive her of her freedom of movement and play with her body & genitals. Even if she resists desperately, she can't endure the disgusting stimulation of the surrounding erect penis men and convulses in humiliating climax! Gradually, what was fear changes into excitement... She is bathed in the semen of the men in the train and sinks into pleasure...
