Yuki is a serious, demanding department manager who leaves her husband for a week-long factory inspection with her subordinate Yoshino. On the unfamiliar commuter train, she is molested in the morning crush and cannot find Yoshino when she needs help. The attacker returns to target her every day, escalating the abuse until she is humiliated and creampied aboard the train. She has no idea that the molesters are actually her subordinate and workers from the factory.