♥ SooYoung (수영)
Birth Name: Choi Soo Young (최수영)
English Name: 썸머 Summer
Group Position : Supporting Vocalist
Nickname : ShikShin (Food God), NaSoo (Interrupter)
Motto : Let's not procrastinate
Languages : Korean (Fluent) , English, Chinese (Basic) , Japanese (Fluent)
DOB: February 10, 1990
Height: 170cm
Weight: 48kg
School: Jungshin All-Girls High School
Casted: 2000 SM Open Audition
2002 Korea-Japan Ultra Idol Duo Audition
Siblings : Older Sister (Soojin)
Duration of Training: 6 years and 3 months