Stage Name: Seo Hyun (서현)
Birth Name: Seo Joo Hyun (서주현)
Nickname : Maknae, Seororo
Motto : If your dream is alive, then one day it will come true.
Group Position : Lead Vocalist
Languages : Korean (Fluent) , English, Chinese (Fluent) , Japanese (Basic)
DOB: June 28, 1991
Height: 168cm
Weight: 48kg
Blood Type: A
School: Daeyoung High School
Casted: 2003 SM Casting System