2002–2004: Hello! Project Kids In 2002, Natsuyaki successfully passed the
Hello! Project Kids' Audition alongside other members of
Berryz Kobo. As a member of
Berryz Kobo, she participated in the band's weekly radio show
Berryz Kobo Kiritsu! Rei! Chakuseki!. That same year, she was cast in
Koinu Dan no Monogatari, however she did not have a large part due to her age. Many members of
Hello! Project Kids and
Morning Musume participated in this film. In 2004,
Hello! Project participated in a large shuffle group that produced one single, "All For One & One For All!". This song is considered one of the themes of
Hello! Project. In addition to the H.P. All Stars, she was placed in two shuffle units, Aa! and Sexy Otonajan. The group was made up of
Miki Fujimoto from
Morning Musume,
Megumi Murakami from
Cute and Miyabi. They produced one song called "Onna, Kanashii, Otona". Earlier, in 2003, she was chosen to join the group
Aa!, which consisted of fellow
Hello! Project Kids member
Airi Suzuki and was led by then Morning Musume member
Reina Tanaka. The group released one single titled "First Kiss," on October 29, 2003. The group went on hiatus until the Hello! Project 2009 Summer tour at which many old shuffle units were renewed. During these concerts, Tanaka was replaced by Saho Akari, since Reina had joined the unit High King. The unit released one song, titled "YES YES YES" as part of the "Happy Wedding Song Cover" album released by Hello! Project.
2004–2016: Berryz Kobo and Buono! Miyabi joined
Buono! alongside Berryz Kobo group-mate
Momoko Tsugunaga and
Airi Suzuki from
Cute. The unit was officially announced at the Nakayoshi magazine Festival 2007 on July 21, 2007, at Tokyo's Sunshine City in Ikebukuro. They sang both the opening ("Kokoro no Tamago") and ending ("Honto no Jibun") themes for the anime adaptation of the Shugo Chara!
manga.
2016–2021: Pink Cres. After Berryz Kobo went on indefinite hiatus, Miyabi took a one-month break and then joined the YouTube show "Green Room" with fellow former Berryz Kobo member
Chinami Tokunaga, which was uploaded weekly and centered around the behind the scenes aspects of
Up Front Group members. In August 2015, Miyabi announced she was creating a new girl group and held auditions on July 1, 2015. The group,
Pink Cres., was later revealed at
Buono!'s 2016 Buono! Festa concert. The group disbanded in 2021.
2021-present: Solo career In January 2026, she confirmed she is married ==Discography==