GAJK-020 - A schoolgirl is trained in bondage in a storehouse. A brutal grandfather teaches a country girl who aims to become an idol about despair. Monaka Sengoku's body writhes in harsh reality and the pleasure of training

Monaka lives with her grandfather in a rural town. One day, he got into an argument with his grandfather, who told him that he had been contacted by the school about his admission to higher education, and retorted, ``I'm going to Tokyo and become an idol!'' When she finally says she's going to run away from home, her grandfather makes up his mind and says, ``It seems like she's been too easy on him.'' When Monaka was dragged into the storehouse, he was tied up with ropes with all his might. She was surprised and frightened by her grandfather's sudden change, but her grandfather began to say, ``Let me teach you what it means to be afraid as an adult.''