A mature woman named Miyuki was caught off guard by a perverted man on a train. Despite being past her prime and believing that men had lost interest in her, she found herself helpless against his advances. As he invaded her sensitive areas, she couldn't move or resist. Eventually, she was forced to experience creampie in front of other passengers... After trying to forget the incident, memories kept haunting her, leading her to indulge in self-pleasure more frequently. Unexpectedly, an urge grew within her - she wanted to ride that same train again. Note: Content may vary depending on the distribution method.