Haruna lives with her father in a rural town. Since her mother died a few years ago, her father has become an alcoholic and is struggling to make ends meet. One day, Haruna visits the landlord's house at her father's request. The landlord reads the letter she was given and suddenly grabs Haruna's breasts. Haruna is surprised and asks, "What are you doing!?" The landlord says, "You didn't hear anything? This letter says that you can do whatever you want with my daughter as collateral for the debt."Haruna is in despair, so the landlord begins to further train her...