Buono! is a Hello! Project unit consisting of three Hello! Project Kids members Momoko Tsugunaga and Miyabi Natsuyaki from Berryz Kobo, and Airi Suzuki from °C-ute. The unit was officially announced at the Nakayoshi magazine Festival 2007 on July 21, 2007, at Tokyo's Sunshine City in Ikebukuro, and formed to sing both the opening ("Kokoro no Tamago") and ending ("Honto no Jibun") themes for the anime adaptation of the Shugo Chara! manga. On July 20, 2008, Anime News Network officially stated that the unit will continue recording for a second year. The group only did the ending themes for the second Shugo Chara! series ("Shugo Chara! Doki").