At a quiet inn's private hot spring, married women reset their mind and body. Beneath their unassuming appearances lie deep desires for adultery and the thrill it brings. Kana, who has no children with her husband four years her senior, receives no affection from him as he is consumed by work. Passing her days with only her pet for company, she cannot distract herself from the inner restlessness lurking within her mid-thirties body. Tired of mundane daily life, she heads to the inn to heal herself. The story portrays her emotional longing to fill the emptiness of her life with the pleasures of infidelity, and the liberating sensation she feels in the tranquil bath.