About Momoko Tsugunaga
Momoko Tsugunaga (嗣永 桃子, Tsugunaga Momoko; born March 6, 1992) is a Japanese former singer, actress, and radio personality. Tsugunaga joined Hello! Project as a member of Hello! Project Kids at the age of 10 and later became part of the girl groups Berryz Kobo and Buono! Following Berryz Kobo's hiatus, she became the playing manager of Country Girls. In 2017, Tsugunaga retired from entertainment to become a kindergarten teacher. They released their first single, "Honto no Jibun", on October 31, 2007. Yurushite Nyan Taiso", which was released as a B-side to Berryz Kobo's 29th single, "Cha Cha Sing." In 2007, Tsugunaga also became part of the subgroup Buono! with Miyabi Natsuyaki and Airi Suzuki from Cute.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.