Yume and Rola are selected to represent Yotsuboshi Academy in an open audition for a confectionary campaign girl, competing against idols from other schools. After clearing the first round, the idols participate in an obstacle race, where Yume helps both Rola and her opponents from Shiny Academy to cross a wooden bridge despite their fear of heights. Yume continues to help Rola through the final obstacle, where the Shiny Academy girls repay the favor. After beating the Shiny Academy girls in a game of rock-paper-scissors, Yume and Rola perform on stage for the tie-breaker, with Rola announced as the winner.