Twinklestars was the baton club sub-unit of Sakura Gakuin active between 2010 and 2014. They released their first single, "Dear Mr.Socrates", on November 28, 2010. The unit became inactive after Muto Ayami's graduation from Sakura Gakuin in March 2012. It was later announced to be active again in September 2014 with a new line-up. The unit became inactive again after Mizuno Yui, Kikuchi Moa and Notsu Yunano graduated in March 2015. All Twinklestars' songs have been written and produced by former Cymbals member Okii Reiji.