Her biological mother ran away with her lover, and the girl was left behind by a man who had no blood relation or love for her daughter. Afterwards, the girl was trained in sexual techniques such as masturbation to make the man happy, and became a sexual processing tool for the scum brought by the man. They were restrained with their legs spread open in an M shape, and the scum's sperm was poured into their unused pink genitals. While being teased, the girl endured the surging pleasure...