Wives living in a hot spring town, struggling with infertility, encounter a master of ancient sexual techniques. Under the guise of fertility treatment, lewd methods are performed, shaking the wives' bodies and drawing them into a whirlpool of desire. First is a slim, modest wife who, through techniques focused on directing awareness to the womb, writhes her hips and experiences orgasm. Stimulated deep inside by the penis, she arches her back and surrenders to pleasure. Second is a fair-skinned, big-breasted, gentle wife who squirms during breast treatment, lifting her face in ecstasy as she straddles the man, breasts swaying as she moans, "I'm so excited." With the penis thrusting in and out, her passion intensifies. Third, seeking bodily improvement, a wife undergoes treatment directly on her genitals, accepting therapy with the penis while dripping with arousal. The youthful-faced wife cries out in pleasure, sobbing as she gives in to the sensations. Each woman's body is stimulated by these unique techniques, awakening entirely new feelings.