Every morning, a 100% chance of encountering an alluringly large butt! Rie Miyagi, a voluptuous office lady in pantyhose, indulging in five days a week of car groping. (SSIS-881)

Office lady Rie Miyagi is commuting on a swaying train. It's Monday, and suddenly a pervert appears. She thought that if she screamed, someone would come to her rescue, but once they arrived, she couldn't utter a sound and was completely at the pervert's mercy. She couldn't resist, couldn't even fight back against his manipulation. "Abstain from sex, then come to this car," he commanded, appearing once again at the same time in the same car. After a while, repeating this twisted relationship, Rie began to crave the pervert's arrival, and finally, the voice in her heart broke out: "I can't take it anymore! More...embrace me with all your might..."