Data e luogo di nascita: Dec 15, 1993, Tokyo, Japan
Tokyo born Araki Yuuko came to the mortal coil as Ishii Yuko on 15.12.1993. She was born in the capital city, but lived in Kanagawa for a couple of years. She is managed by Stardust Promotion and was recruited while in fifth-grade and eleven years old at Takeshita street of Harajuku in 2004.
