Miu Aino is a woman who normally works as a cosmetics sales representative. Her career was going well and her income was stable, but one day, driven by financial desires, she began a secret side job without her company's knowledge. This job involved selling her own body—an extremely dangerous choice. However, she could never have imagined that this decision would become the catalyst that completely destroyed her life. When a coworker's secret side job was exposed, Miu herself was kidnapped and imprisoned. Locked inside a room in a run-down apartment building, Miu lets out a desperate scream. That cry marks the beginning of her psychological collapse. From the moment her sacred boundaries are violated, her life begins hurtling toward its end.