In a certain hot spring town, a master of 'room arts' is visited by childless wives struggling with infertility. Under the guise of fertility guidance, they are driven to ecstasy with various obscene techniques... The first wife, who entrusts everything to the master, has her genitals manipulated and releases copious amounts of lubrication. She accepts the penis without resistance, writhing her slender body in pleasure. The second wife initially resists exposing her skin but is convinced to let her large breasts be fondled. After her genitals are stimulated, she gushes and becomes highly aroused, screaming and fainting as the penis thrusts into her. The third wife, a fair-skinned beauty in her thirties, has her uterus area massaged, causing her voice to tremble as she reaches orgasm. Shocked by the penetration of the penis, she soon moans with pleasure as it moves in and out, eventually straddling the man and grinding her hips.
