Onyanko Club
Nitta made her first appearance as the fourth member of Onyanko Club in April 1985 with an appearance on the group's Fuji TV variety show "Yūyake Nyan Nyan". While she initially wanted to quit show business soon after starting, she suddenly became the most senior member of the group on April 25, 1985 following the "Shūkan Bunshun" Smoking Scandal in which five members (including the first three members) of Onyanko Club were fired.