High school girls are forced into daily sexual abuse in a confined room. One girl has extremely sensitive nipples, so responsive that even slight stimulation causes her to squirt instantly. The other, after prolonged imprisonment, has grown numb to feelings of shame or pleasure, moving her body almost unconsciously now. A 23-year-old freeter, she deliberately chooses to be raped while wearing a school uniform just to enjoy her massive breasts being used. For her, the act of wearing the uniform brings a special kind of arousal.