 Also during this period she became friends with the SM author, Oniroku Dan, with whom she would work throughout her film career.Dan was secretly writing S&M film scripts under the pseudonym Matsugoro Kuroiwa while working as a high school English teacher.Tani's "pretty face, beautiful fair skin... and 96cm (38") large breasts" as well as her acting abilities helped make her a popular actress in the late 1960s.