Aya Mamiya and her husband run a traditional inn in a hot spring town on the outskirts of Tokyo. Aya once worked as an office lady and married her former colleague, Takashi. Takashi inherited his family's inn, and the couple now struggle to keep the business afloat. However, due to economic downturn, fewer guests are coming, and their financial situation grows dire. Things take a turn for the worse when Kudo, a loan shark to whom their employee Kitashima owes money, begins demanding repayment. Desperate, Kitashima makes a deplorable suggestion—offering Aya's body to settle the debt.