One Chance Yeah Hoi!

 (わんちゃんいやほい！) is currently a six-member Japanese idol group originally formed with seven members in November 2018.

They made their stage debut on December 15, 2018 @VALLEY×VALLEY×TOKYO.

Current Members

 * Yamanouchi Yumi (山之内優美; White ) (Founding member) Leader
 * Koshimizu Mikuna (越水みくな; Purple ) (Founding member)
 * Kakehi Kana (筧かな; Yellow ) (Joined August 2019)
 * Ichimiya Norika (一宮のりか; Sky Blue ) (Joined August 2019)
 * Kurusu Shion (来栖しおん; Pink ) (Joined July 2020)
 * Ichinose Ayano (一ノ瀬あやの; Red ) (Joined July 2020)

Former Members

 * Kuroda Rimana (黒田りまな; Pink ) (Founding member; graduated March 2019)
 * Yojima Rea (與島れあ; Orange ) (Founding member; graduated August 2, 2019)
 * Takane Yuki (高嶺祐紀; Black ) (Founding member; graduated August 2, 2019)
 * Kamisaki Momo (神咲もも; Sky Blue ) (Founding member; graduated August 2, 2019)
 * Kamimura Jumina (上村じゅみな; Red ) (Joined August 2019; left August 31, 2019)
 * Nishimura Misaki (西村美咲; Pink ) (Joined August 2019; left September 21, 2019)
 * Akimoto Yuuki (秋元結季; Red ) (Founding member; graduated November 12, 2019)
 * Saito Nanaka (斉藤ななか; Red ) (Joined November 12, 2019; left March 25, 2020)
 * Kawai Niina (川合ニイナ; Yellow-Green ) (Joined November 12, 2019; left July 1, 2020)

Singles

 * 1) [2019.05.21] Yokome de Nagamete Oikoshite Iku no (横目で眺めて追い越していくの; Look Sideways and Overtake)
 * 2) [2020.11.03] Hari Senbon Nomasu (針千本飲ます; Drink 1000 Needles)

Trivia

 * They are branded as a "super energy-ish Harajuku idol" group.