In a dark, empty schoolbuilding, Kiriko is bound and gagged, wearing only her underwear. In front of her, there are three men wearing masks. They tell her, "I want to see your body drown in pleasure, and your face controt in ecstacy." These men had much experience with other female teachers.

They would continue their perverse assault until their prey cried out in ecstacy. However, Kiriko is a strong-minded, marital arts expert - leaving two of the men were already lying wounded in the nurse's room. As Kiriko threatens to turn the men into the police, her epithets start to excite them. They then propose a challenge...