In March 2015, the group held a graduation concert at which Moa Kikuchi, Yui Mizuno, Hana Taguchi, and Yunano Notsu bid goodbye to the fans and remaining six members.
March 2016 marked the departure of Saki Ooga, Saki Shirai and Rinon Isono, although in May of the same year Momoe Mori, Tsugumi Aritomo and Yuzumi Shintani transferred in.