 In 1971, however, Nikkatsu, the country's oldest film studio, had entered the "Pink Film" market with its high-budget and quality "Roman Porno" series.Besides appearing in Nikkatsu's first experiment in the "pink film" in 1968, "Tokyo Bathhouse" ("Onna Ukiyo Buro"), which featured over 30 sex-film stars in cameo appearances, Tani's first official "Roman porno" for Nikkatsu was in a minor role as a nurse in "Sensuous Beasts" (1972).Unlike her starring roles for smaller studios, she played a supporting role in this film.