Ichimiya Sayaka

 (一宮彩夏), also known as Miyauchi Sayaka (宮内彩夏), is a founding member of Jams Collection and a former member of 10COLOR'S.

She joined 10COLOR'S with the 3rd Generation on March 9, 2014 and was a member until disbandment.

Singles

 * Francois ~Todokanai Kataomoi~
 * JK☆Dai Kakumei no Hibi

Mini Albums

 * JamMode

Digital Albums

 * Jams Selection