Eriko, a woman overflowing with a sense of justice, one day encounters a molester. Normally, she would immediately brush him off, but that day, unbeknownst to her, she is swept away by the molester's perverted techniques and lets out a voice in the train. A pleasure she has never experienced before is deeply etched into Eriko's mind... On the surface, she detests molesters, but deep down, there is a part of her that looks forward to the joy of being toyed with in public. And then, a man once again sneaks up behind Eriko...
