Mizuho Ono Biography
小野瑞歩 (Ono Mizuho) is a Japanese pop singer under Hello! Project as a member of Tsubaki Factory. She was introduced alongside seven other girls at the Hello Pro Kenshuusei Happyoukai 2015 ~Haru no Koukai Jitsuryoku Shindan Test~ on May 4, 2015.
