山岸理子 (Yamagishi Riko) is a Japanese pop singer and dancer under Hello! Project as a member and leader of Tsubaki Factory. She first joined Hello! Project as a member of Hello Pro Kenshuusei in June 2012 and was introduced at the June 2012 recital alongside Nomura Minami.
Yamagishi Riko (山岸理子) • Yamagishi Riko • Riko-Riko • りこりこ
