A conscientious female teacher is turned into a premature ejaculation patient by a masturbation demon, and becomes a perverted railway woman who deviates from her teaching career. (MIDA-517)

Because she was perceived as incapable of resisting, Sakura, a simple and earnest teacher, had been repeatedly victimized by molesters in the past. Each time she rode the train, these past memories would flash through her mind… One day, while boarding a crowded train as usual, she was molested. However, this time the mole was different; for some reason, it felt comfortable, and even though it was a despicable act, she felt pleasure…