Gaisei Utopia Kakumei

Gaisei Utopia Kakumei (蓋世ユートピア革命), shortly known as Gaisei (ガイセイ), was a Japanese idol girl group from Osaka, formed in March 2020 and based in the Kansai area.

The group disbanded in November 2021.

Final Line-Up

 * Shishimaru Kuon (紫々丸くおん; ) (Original Member)
 * Towa Himeri (兎羽姫莉; ) (Original Member)
 * Sakazuki Kaguya (盃赫夜) (Joined December 2020)

Former Members

 * Sokura Yoruha (蒼冥依生; ) (Original Member; Withdrew September 29, 2020)
 * Hinata Karin (陽向華凛; ) (Original Member; Graduated November 6, 2020)
 * Kokoa Momoka (心々優杏果; ) (Original Member; Graduated November 6, 2020)
 * Todo Mina (藤堂未渚; ) (Original Member; Graduated November 6, 2020)
 * Suimu Neru (水夢ねる) (Joined December 2020; Withdrew February 2, 2021)