The Cardfight Club is forced by the Miyaji student council to take the main stage on the day of the academy's upcoming School Festival. The student council hopes to use this chance to embarass the club and tarnish its reputation. Despite the daunting task, the club decides to do a stage play using one of Shingo's prewritten scripts and with costume help from Emi and Mai. The script is loosely based on The Tale of the Bamboo Cutter but with Vanguard units; Aichi is given the role of the bamboo cutter (Little Sage, Marron), Misaki is the heroine (CEO Amaterasu), Naoki is the villain (Eradicator, Vowing Sword Dragon), and Kourin is the hero (King of Knights, Alfred). Although Kourin is seemingly busy with her job as an idol, Misaki notices that she is in fact preparing for the play. However, on the day of rehearsal, Kourin does not show up, which leads the club (except Misaki) to think that she is not serious about the play and that Aichi should take the role of Alfred.