I'S wing

 (sometimes written as I'S win9, formerly known as I'S9) was an idol group based in Fukuoka, Japan. They were formed in 2013 and disbanded on May 31, 2017.

Final Members

 * Yoshioka Arisa (吉岡愛梨咲)
 * Yuasa Miku (湯浅実玖)
 * Matsushita Miyu (松下美侑)
 * Yamamoto Airi (山本愛理)

Former Members

 * Adachi Kana (足立加奈)
 * Mori Natsumi (森なつみ)
 * Shibata Kanako (柴田香菜子)
 * Fukunaga Aisa (福永愛沙)
 * Tokunaga Yuuri (徳永裕梨)
 * Chiai Suzuka (落合涼香)
 * Kondo Risa (近藤李砂)
 * Hinata Sakura (日向桜花)
 * Kurihara Rumi (栗原留美)
 * Yamaguchi Shuri (山口朱莉)
 * Kuritani Aki (栗谷阿貴)

Albums

 * [2015.01.21] Watashi ga Idol ni Natta Hi (私がアイドルになった日)
 * [2017.05.28] Watashi wa Tashikani Koko ni Ita. (私は確かにここにいた. )

Singles

 * [2013.05.22] Kimi ga Irukara (キミがいるから)
 * [2013.11.30] Kirakira Kazoe ni Ikou (キラキラ数えに行こう)
 * [2014.04.23] Onegai, Gyuttoshite (お願い、ギュッとして)
 * [2015.08.13] Omachi Shitemasu! (お待ちしてます！)
 * [2015.09.09] Habatakunda! (羽ばたくんだ！)
 * [2016.05.24] Mebae no Haru. (芽生えの春. )
 * [2017.04.19] Watashi ga Watashi de Aru Koto, (私が私であること、)

Digital Single

 * [2016.11.23] Tonaete, Winter9 (唱えて、Winter9)