1PS Profile (Maroo Entertaiment)

Stage Name: Yena
Birthday: April 19, 1988
Position: Leader, Vocalist, Face of the Group
Height: 165 cm
Role Model: Yangpa

Birth Name: Lee Yoon Seo
Stage Name: Yoonseo
Birthday: April 13, 1992
Position: Main Vocalist
Height: 168 cm
Role Model: Shin Yong Jae
-She is a ballet dancer

Stage Name: Jieun
Birthday: July 10, 1992
Position: Vocalist, Main Dancer
Height: 164 cm
Instruments: Piano
Role Model: Lee Sora and Kim Bum Soo

Birth Name: Oh Yu Rim
Stage Name: Saeha
Birthday: December 21, 1992
Position: Maknae, Lead Vocalist
Height: 165 cm
Blood Type: AB
Role Models: Ailee and Davichi
-Former member of E2RE