# Ukka

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

| Name | Birthdate | Notes |
| Sora Akane (茜空) | (2003-03-13) March 13, 2003 (age 21) | |
| Riju Murahoshi (村星 りじゅ) | (2002-10-19) October 19, 2002 (age 21) | |
| Moa Serizawa (芹澤 もあ) | (2006-01-18) January 18, 2006 (age 18) | Joined on January 17, 2016 |
| Rina Yuuki (結城りな) | (2003-04-09) April 9, 2003 (age 21) | Joined on September 25, 2021 |
| Ruri Aoi (葵るり) | (2004-07-20) July 20, 2004 (age 20) | Joined on September 25, 2021 |
| Yuu Miyazawa (宮沢友) | (2009-02-26) February 26, 2009 (age 15) | Joined on November 24, 2023 |
| Koharu Wakana (若菜こはる) | (2010-03-02) March 2, 2010 (age 14) | Joined on November 24, 2023 |

## Former members

| Name | Birthdate | Notes |
| Misato Sakurai (桜井 美里) | (2003-04-18) April 18, 2003 (age 21) | Graduated on December 28, 2020 |
| Mizuha (水春) | (1999-06-25) June 25, 1999 (age 25) | Former Leader Left on March 18, 2021 |
| Ayame Kawase (川瀬 あやめ) | (2001-10-25) October 25, 2001 (age 22) | Former Leader Graduated on December 30, 2023 |

### 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 Yuuki and Ruri Aoi joins as a result of the audition
2022
On May 5, They sign their major debut contract with Teichiku Records label
2023
On November 24, Yuu Miyazawa and Koharu Wakana joined the group
On December 30, Ayame Kawase graduated from the group

## Discography
### Albums

| No. | Title | Release date |
| 1 | Sakuraebis | March 21, 2018 |
| 2 | Octave | August 21, 2019 |

### EP's

| No. | Title | Release date |
| 1 | T.O.N.E | July 28, 2021 |

### Singles

| No. | Title | Release date | MV |
| CD-R Singles ||||
| 1 | 1st CD-R | July 30, 2016 | |
| 2 | 2nd CD-R | October 30, 2016 | |
| 3 | 3rd CD-R | April 15, 2017 | |
| CD Singles ||||
| 1 | Watashi Romance | September 2, 2017 | MV |
| 2 | Summer Magic | October 14, 2018 | |
| 3 | Autumn Moon | December 28, 2018 | |
| 4 | Winter Sleep | March 30, 2019 | |
| 5 | Koi, Ichibanme | May 6, 2020 | |

### Digital singles

| No. | Title | Release date | MV |
| 1 | Lindberg | July 11, 2018 | MV |
| 2 | Shakunetsu to Ice Cream | July 25, 2018 | MV |
| 3 | Mawaru Mawaru Mawaru | September 5, 2018 | |
| 4 | Magik Melody | September 30, 2018 | |
| 5 | Onegaiyo | October 26, 2018 | MV |
| 6 | Gra-gen | November 28, 2018 | |
| 7 | Kirakira | December 17, 2018 | MV |
| 8 | Kaerenai! | January 31, 2019 | |
| 9 | 214 | February 27, 2019 | MV |
| 10 | Sorewa Getsuyoubi no 9ji no Youni | March 29, 2019 | |
| 11 | Nē, Loafer. | April 26, 2019 | |
| 12 | Saisho no Saisho | May 31, 2019 | |

### Collaboration singles

| Order | Title | Release date | Notes |
| 1 | Mugen Kageki | March 26, 2017 | With Iginari Tohoku San. Only for sale in events. |