Sachiko, an honor student with big breasts who makes her uniform stretch. - Because she is a single-mother family, she spends her days studying to be a good boy, but she is licked by a dirty man in her body behind her face as her honor student. I had a masochistic desire to want. - One day, Nakata, who brought her drunken father to her house, witnessed her masturbating, and she was coerced into sexual activity. - Since then she has become a sex slave of Nakata, and she has been trained in lewd acts ....