Prism Fantasia

 (虹色幻想曲 〜プリズム・ファンタジア〜, Nijiiro Gensoukyoku ~Prism Fantasia~) is a Japanese idol group that was formed on March 15, 2015.

Current Members

 * Shirahoshi Chiaki (白星ちあき; ) (Founding Member; Leader)
 * Kurakawa Saika (倉川さいか; ) (Joined March 1, 2019)
 * Kitano Megumi (北野めぐみ; ) (Joined February 14, 2021)

Former Members

 * Airi Moe (愛梨萌; ) (Founding Member; Withdrew September 6, 2016)
 * Kurose Ema (黒瀬咲舞; ) (Joined September 13, 2016; Graduated October 14, 2018)
 * Hinagata Mary (雛形まりい; ) (Joined September 13, 2016; Graduated October 14, 2018)
 * Yozuki Meyu (夜月めゆ; ) (Joined October 13, 2018; Withdrew March 1, 2019)
 * Shiroyume Sakyo (城夢サキョ; ) (Joined October 13, 2018; Withdrew March 1, 2019)
 * Sakuya Runa (咲耶るな; ) (Joined October 12, 2018; Withdrew June 30, 2019)
 * Uno Yui (兎乃結衣; ) (Joined March 1, 2019; Graduated December 19, 2019)
 * Kokonoe Haru (九重はる; ) (Joined October 12, 2018; Graduated February 25, 2020)
 * Shizuku Noa (雫のあ; ) (Joined March 13, 2020; Withdrew July 31, 2020)
 * Nishimori Karen (西森可恋; ) (Joined September 13, 2016; Graduated October 14, 2018; Rejoined February 19, 2020; Withdrew August 31, 2020)
 * Shinohara Minami (篠原みなみ; ) (Founding Member; Graduated November 17, 2021)
 * Anami Saho (穴見沙帆; ) (Founding Member; Graduated December 31, 2021)
 * Nagisa Inori (渚いのり; ) (Joined March 13, 2020; Withdrew February 13, 2022)
 * Nakamori Yuna (中森由那; ) (Joined February 14, 2021; Withdrew February 13, 2022)
 * Kanzaki Rinoa (神崎りのあ; ) (Joined March 13, 2019; Graduated May 5, 2023)
 * Mihane Eri (美羽えり; ) (Joined March 1, 2019; Graduated July 9, 2023)

Discography

 * TBA

Trivia

 * Their slogan is "Nameless flower in full bloom" (咲き誇れ名もなき花)
 * Their concept is to never do the same setlist twice (同じセットリストは２度とやらない).
 * They call themselves "Founder of non-stop medleys" (ノンストップメドレーの元祖).