Seiten no Hekireki

 (晴天の霹靂) is an idol group with the concept of "pop and cute revolution". They debuted on December 24, 2020.

On January 19, 2022, they announced that they will disband in February.

Current Members

 * Furuno Aina (古野愛奈; )
 * Higuchi Yuno (樋口結乃; )
 * Murase Noa (村瀬のあ; )
 * Shigematsu Sakura (重松さくら; ) (Hiatus)
 * Yumeno Api (夢乃あぴ; ) (Hiatus)

Former Members

 * Rindo Rena (琳棠れな) (Left November 2020)