Stage name: Inseong (인성)

Birth name: Kim Inseong (김인성)

Position: Main Vocalist

Birthplace: Nowon-gu, Seoul, South Korea

Birthday: July 12, 1993

Zodiac sign: Cancer

Height: 184cm (6'0")

Weight: 70kg (154 lbs)

Blood type: A

Instagram: pum.castle