The Dragon Empire Branch is holding a festival, and the already-overworked Mamoru has been put in charge, so he delegates a bit to his kid sister, Tokoha, who is tasked with coming up with a festival activity. Chrono is brought into the fold kicking and screaming, but comes up with a plan that may make the whole festival successful. Plus: Mamoru in three simultaneous Vanguard fights against our protagonists!

Chrono, Tokoha, and Shion take on a quest to help a shy Cardfighter who fell in love at first sight with a girl he fought a match with once but never saw again. Can the quarrelsome trio use their resources and wits to track the girl down when they`ve got nothing to go on except a single card she left behind?