KATA☆CHU

 is a seven-member Japanese idol group originally formed with four members on October 7, 2015.

On April 23, 2016, they changed their name from Idol←Kataomoi Chuu (アイドル←片思いチュー) to the current name.

Current Members

 * Oshima Haruka (大島遥華; White ) (Joined December 17, 2015)
 * Kato Mayu (加藤真侑; Yellow ) (Joined January 21, 2016)
 * Shiraishi Yuri (白石友梨; Pink ) (Joined January 23, 2016)
 * Mizutani Mana (水谷真菜; Blue ) (Joined April 2, 2017)
 * Tsuzaki Tami (津崎たみ; Green ) (Joined August 5, 2018)
 * Yokoyama Shiori (横山栞; Red ) (Joined January 17, 2019)
 * Murakami Haruka (村上はるか; Purple ) (Joined January 17, 2019)

Former Members

 * Goto Ayane (後藤綺音) (Founding member; left February 10, 2016)
 * Nomoto Yuki (野本ユキ) (Founding member; left November 4, 2015)
 * Minowa Minori (箕輪美里) (Founding member; graduated March 21, 2016)
 * Enomoto Nariko (榎本奈里子) (Founding member; graduated March 21, 2016)
 * Katagi Sou (片木爽) (Joined October 27, 2015; graduated December 21, 2015)
 * Murakami Ryouka (村上遼華) (Joined October 27, 2015; graduated July 6, 2018)
 * Sakamoto Asaka (坂本朝香) (Joined October 27, 2015; left March 15, 2016)
 * Kurano Maho (倉野真帆) (Joined November 27, 2015; left May 10, 2018)
 * Shurin (珠鈴) (Joined November 27, 2015; graduated March 21, 2016)
 * Kobayashi Hitomi (小林瞳) (Joined December 7, 2015; graduated August 15, 2016)
 * Angel Ikachanpi (エンジェルいかちゃんぴ) (Joined December 21, 2015; graduated November 15, 2016)
 * Takasugi Nene (高杉寧々) (Joined January 2016; left January 28, 2016)
 * Yamamoto Yurina (山本侑璃奈) (Joined January 21, 2016; left January 28, 2016)
 * Imori Yuko (井森優子) (Joined February 8, 2016; graduated July 23, 2016)
 * Nagasawa Piano (永澤比亜乃) (Joined February 20, 2016; graduated July 18, 2016)
 * Imiya Miki (伊宮示芸) (Joined February 28, 2016; graduated August 27, 2016)
 * Aizawa kyoko (藍澤杏子) (Joined March 9, 2016; left May 21, 2016)
 * Otsuka Ayame (大塚絢女;) (Joined May 24, 2016; graduated August 15, 2016)
 * Takamiya Hana (高宮花) (Joined July 5, 2016; graduated October 8, 2016)
 * Onodera Erena (小野寺えれな) (Joined July 5, 2016; left October 6, 2016)
 * Ichikawa Akari (市川あかり) (Joined July 5, 2016; graduated December 14, 2017)
 * Sato Mizuho (佐藤瑞紗) (Joined July 5, 2016; graduated October 17, 2016)
 * Mori Akari (森朱里) (Joined August 9, 2016; graduated March 23, 2017)
 * Fujima Miyuu (藤間美羽) (Joined March 22, 2018; left December 30, 2018)
 * Osaka Rina (逢坂りな) (Joined August 5, 2018; left December 30, 2018)