Korean Name:  ​Kim Seon Yeon (김선연)

 Stage Name:  Sun Y.
 Nickname:  Sun, S.B, Sushi
 Date of Birth:  27/08/97
 Height:  1,62

Position:  ​Leader, Main Rapper, Lead Vocal.
Speciality:  Rap, Composition and Actress
Hobbies:  Dancing, writing and drawing
 Twitter:  @SunYBOO

​Fandom: Sushis