Living together peacefully with their stepfather, Yoshio, in a small countryside house were sisters Nono and Hina. They led a quiet, ordinary life until one day Yoshio suddenly passed away. Responsibility for the sisters then fell to their stepbrother, Koji, who had returned from the city. At first, Koji treated them kindly, but his demeanor gradually changed, his interest in the sisters becoming increasingly perverse. Nono desperately endured to protect her younger sister, while Hina, crushed by fear, clung to her sister for support. But Koji's descent into cruelty knew no limits—he eventually brought wealthy men into the house and forced the sisters into prostitution. In the dimly lit rooms, the two girls clung to each other, holding onto faint hope as they struggled to survive. Yet behind the sisters, clasping hands before the family altar, Koji's shadow loomed constantly, unrelenting.