Mei Washio, a busty OL (Office Lady), experiences her first encounter with sexual assault. She feels scared, wants to run away, and can only think negative thoughts. The time she spent feeling violated seems like forever; she even wonders if the train would never reach its next station. However, despite being filled with fear, she unexpectedly finds herself craving more. As she masturbates to relive the sensation, Mei slowly awakens to her femininity... Note that the contents may vary depending on the distribution method.