Real Name: 정윤학 (Jung YoonHak)
Stage Name: Spica YunHak
Position: Leader, Sub Vocal
Date of Birth: 1984 December 2
Family: Mother, father
Blood Type: O
Shoe Size: 280mm
Height: 180cm
Weight: 64kg
Educational Background: Japan Aichi University (Graduated), KyungHee University (Media Informations & Research; still attending)
Hobbies: work out, watching movies, snowboarding, collecting DVDs, collecting shoes, driving
Specialty: basketball, sing, dance, Japanese language
Experience:
-2007 FT Island - 행복합니다 [I'm Happy] MV
-2007 Seeya - 결혼할까요 [Let's Get Married] MV
