Soiree brilliance

 was an idol group that debuted in August 2020. Their catchphrase is "let's make a party on an unspecial day" (なんでもない日をパーティーにしよう).

They suspended activities on October 30, 2022 and revived with new members in December.

They disbanded in March 2023.

Final Line-Up

 * Aizuki Risa (愛月りさ; ) (Founding member)
 * Watanabe Noll (渡辺のる; ) (Joined pre-debut)
 * Nishino Arisa (西乃ありさ; (Joined November 23, 2022)

Former Members

 * Ashihara Rika (葦原梨華) (Left pre-debut)
 * Hoshimiya Yuzu (星宮ゆず) (Joined April 2021, left September 2021)
 * Fujishima Kaori (藤島かおり; ) - Producer (Founding member, graduated January 22, 2022)
 * Yuui Mana (結井まな; ) (Joined November 23, 2022, left January 2, 2023)
 * Koyama Ayumi (小山あゆみ; ) (Joined November 23, 2022, left January 14, 2023)
 * Sorane Marina (空音まりな; ) (Joined October 2021, graduated February 11, 2023)