a middle-aged man repeating obscene words on a certain local train begins to harass a female student. the act escalates, and the frightened girl is ejaculated on like crazy at an unmanned station. another man who witnessed the scene felt excitement and became an imitator. he ambushes the female student and carries out a merciless rape. the pursuit rape at the unmanned station does not stop, and the two rapists conspire to imprison the female student in the station building. a heinous coercive rape incident that defiles the bodies and minds of the two girls.