Rina Aizawa
Saki/Go-On Yellow
Birthdate: 07/28/1991
Age (as of Feb 2008): 16 Official Website
Masahiro Usui
Hanto/Go-On Green
Birthdate: 12/10/1991
Age (as of Feb 2008): 16
He was part of a stage acting troupe that performs skits known as D-Boys. Official Blog
Kenji Ebisawa
Gunpei/Go-On Black
Birthdate: 10/22/1986
Age (as of Feb 2008): 21 Offical Blog
Nao Oikawa
Kegalesia
Birthdate: 04/21/1981
Age (as of Feb 2008): 26
Height: 5' 3 1/2"
She is former porn star (AV girl), much like Kei Mizutani (Shelinda), Asami Jo (Shibolena)
and Rika Nanase (Zonnette). Asami Jo continues doing adult films.