S1E13 · Song of the Moon

At last, Gravi and Procella's joint concert, "Full Moon Festival", is starting! A few months after the announcement of the joint concert. As they spend bustling days as novice idols, each members introduced performances that they thought up by themselves, all while reminiscing about everything they had experienced during works and on their daily lives. What decorates the stage of finale filled with their various thoughts are...!