This is the story of sisters who lost their parents and lived a life of hardships...The time is 60.Sisters driven into poverty in the midst of the bubble economy.In a situation where it is difficult to live a normal life, her older sister, who has a small but valuable source of income, is seriously injured after suffering a serious injury to her leg.Expensive medical expenses for her living expenses... Her sister runs into prostitution in order to live.Her younger sister's gasping voice that can be heard across her fusuma... her older sister who felt strange excitement along with her guilt.Her hand was extended to her own crotch...