Mei and Yugo Satsuki run a traditional inn at a hot spring resort. Mei, once an office worker, married her former boss Yugo and took over his family's inn, now managing it together with him. However, recent economic downturns have made their business increasingly difficult, and their troubles are compounded by Suzuki, a long-time employee who has grown insolent and disrespectful. Amid this crisis, Suzuki's loan shark, Takimoto, demands immediate repayment. Desperate, Suzuki makes a heinous proposal—offering Mei's body, with her voluptuous figure and stunning beauty, as collateral.