The case of K-san (20 years old), who lives in Ren● Ward, Tokyo and works at a supermarket. She grew up in a single-parent household and has always lived in poverty. Due to her gloomy personality, she was abused by her mother and her common-law husband at home and bullied at school. At her current workplace, she is seen as modest, quiet, and serious, and lives a quiet life while being forced to work and do overtime. Even after leaving home, she was forced to live with a regular customer at her mother's store (42 years old, with a criminal record) who lent money to her mother, and she is trained in sex every day to pay off the debt. As a result, this girl, who is far from happiness, is sold to an international organization by her co-habitant two months later... "I am a woman whose only value is my body..." K-san falls into the swamp of extreme masochistic play. A woman who is obedient and non-resistant to anything, with an extremely erotic body when she takes off her clothes, and becomes extremely erotic as soon as a dick is inserted, the best meat masturbator that sells for a high price. The perverted masochistic pet that was convenient for the man was sold from one place to another...