Ukka (officially stylized as ukka), formerly Sakura Ebis (桜エビ〜ず) is a Japanese girl idol group, formed by Stardust Promotion in August 2015. The group was originally formed as a "little sister" group of Shiritsu Ebisu Chugaku. Members Former members Timeline History 2015 On January they started recruiting members for a "little sister" group of Shiritsu Ebisu Chugaku On May, Sakura Ebis was launched with 4 members: Mizuha, Misato, Riju and Ayame On July, Sora was incorporated into the group as the 5th member On August 1, they showed for the first time at TIF2015 . 2016 On January 17, they held their first one-man live. Moa joins as the 6 member On July 30, they released their 1st CD-R On July 31, they performed at Girls Factory Day 2 (Ebichu's Day) 2017 On September 2, they released their 1st CD Single "Watashi Romance" in Yokohama Bay Hall 2018 On March 21, they released their 1st Album "Sakuraebis" 2019 On August 21, they released their 2nd Album "Octave" On November 16, they announced that they would change their name to "ukka" 2020 On December 28, Misato Sakurai graduated from the group 2021 On March 18, it was announced that Mizuha had left the group On July 28, they released their 1st EP "T.O.N.E" On September 25, Rina and Ruri joins as a result of the audition 2022 On May 5, They sign their major debut contract with Teichiku Records label Discography Albums EP's Singles Digital singles Collaboration singles References External links Official website Japanese idol groups Japanese girl groups Japanese pop music groups Child musical groups Japanese-language singers Musical groups established in 2015 2015 establishments in Japan Stardust Promotion artists