Yamaoka Yuka (山岡由佳) is a former member of QunQun. She joined the group with the 4th Generation in January 2014 and graduated in March 2019.
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Yamaoka Yuka (山岡由佳) is a former member of QunQun. She joined the group with the 4th Generation in January 2014 and graduated in March 2019.