In 1965, due to her husband's overwhelming debt, Kanako is forced to work as a live-in servant. While thinking of her husband, who works as a temporary laborer at a coal mine in Kyushu, she is sexually exploited by a distant uncle. To stabilize the household finances, whenever payments fall behind, Kanako is compelled to participate in explicit blue film recordings. Enduring the silence from her husband, she exposes her own body in a desperate attempt to repay the debt faster—her plight vividly portraying a woman struggling against harsh reality.