SAISON

 is a nine-member Japanese idol group formed on October 16, 2021.

They'll make their stage debut on November 20, 2021 @Nihonbashi Mitsui Hall.

They'll only be active for one year and will therefore disband sometime in 2022.

Members

 * Okada Ayaka (岡田彩花) (Founding Member)
 * Suzuki Mariya (鈴木まりや) (Founding Member)
 * Aisako Miyu (愛迫みゆ) (Founding Member) - Leader 
 * Hiroshima Mizuki (廣島みずき) (Founding Member)
 * Hayashi Ayano (林あやの) (Founding Member)
 * Kojima Runa (小島瑠那) (Founding Member)
 * Yoneyama Honoka (米山穂香) (Founding Member)
 * Ishida Haruka (石田晴香) (Joined June 20, 2022)
 * Nonaka Misato (野中美郷) (Joined June 20, 2022)

Trivia

 * Their catchphrase is "All of Us, in This 1 Year" (私たちの全てをこの1年に)