Premise: Chao Kuo-Jung (; born August 28, 1992 in Taiwan), better known in Japan as Youko (ヨウコ ) is a member of the latest Hello! Project group Ice Creamusume. She was announced as a winner of the Taiwan Hello! Project New Star auditions on September 20, 2008 along with the other members of Ice Creamusume.
Hypothesis: Chao Kuo-Jung is the stage name of Youko