After her husband died in an accident, Reiko was forced to work for Yumi to pay off his debts. Until now, she had endured Yumi's sadistic and lewd commands, but the demands grew increasingly extreme until finally she was ordered to shave her pubic hair. Shaken by this unprecedented humiliation, feelings of revenge began to stir within her. Reiko slipped sleeping pills into Yumi's meal, rendering her unconscious. When Yumi awoke, she found herself lying on a bed, completely restrained and unable to move. Mocking her helplessness, Reiko took a pair of scissors and began cutting away Yumi's pubic hair. In that moment, Yumi's mind began to break.