Hiroko Kurumizawa

Hiroko Kurumizawa (胡桃沢 ひろこ) is a Japanese singer. In 1991, she became a member of Sakurakko Club, together with Anza Oyama, Miki Nakatani, Miho Kanno, and Noriko Katō. Her real name is Hiroko Yamazaki (山崎 裕子).