Dear φ Prologue

 is a three-member Japanese idol group formed on July 21, 2023.

They made their stage debut on September 2, 2023 @Sendai SPACE ZERO.

Members

 * Kotone (コトネ; )  - Leader 
 * Momo (モモ; )
 * Tenmei (テンメイ; )

Digital Singles

 * 1) [2023.09.02] Dear φ Prologue