Koboshi announces Princess Kaguya, the play they will put on for the school arts festival. Hiroshi competes with Takashi to win the main part but loses. Takashi accidentally hurts himself and hands the part to Kotarou even though Hiroshi argues that he is a better replacement. Kotarou has trouble memorizing the script and practices hard, losing his voice. Through Misha's encouragement, Kotarou finishes the play successfully.