Married woman Kasumi, who had lost the confidence she regained during her previous affair trip after being rejected by her husband in their sex life, had been spending her days alone, pleasuring herself. Through a wrong-number call, she reunites after two months with the man who reignited her passion, embarking on a second hot spring getaway with him. Freed from the constraints of daily life, both mentally and physically, Kasumi grabs the man's cock in the outdoor bath and passionately sucks him off. Awakening to this intense pleasure, she mounts him beside the bath, grinding her hips as she chases ecstasy. Abandoning her pride as a married woman, she surrenders to her instincts, greedily craving more and more pleasure, diving headfirst into a new adventure of desire.