About Miyabi Natsuyaki
Miyabi Natsuyaki is a Japanese singer. Her career began in 2002 when she passed the audition for Hello! Project Kids, an all-female child pop group under Hello! Project. She continued to sing in that group and became a part of four smaller groups composed of Hello! Project Kids members—Aa!, Sexy Otonajan, Buono! and Berryz Kobo. She was the sub-captain of Berryz Kobo until their indefinite hiatus in 2015. She became a member of female pop band PINK CRES.. The group released one single titled "First Kiss," on October 29, 2003. Buono! continued to record the ending and opening themes for the first season of the anime.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.