Kamui invites Chrono to a special FIVA event where one lucky person can get a chance to fight against Mamoru, who is the Kagero clan leader of the region. After Chrono registers himself for the event, he is approached by a man in a costume of FIVA's mascot character, Vangua-rou, who is interested in fighting against Chrono's Gear Chronicle deck. Then, Mamoru appears, trying to find the branch manager, Ryutarou Oyama. He quickly deduces that "Vangua-rou" is Ryutarou, who escapes with Chrono in hand. To track Ryutarou down, Mamoru creates a quest for all fighters to "catch Vangua-rou", thus leading Ryutarou and a reluctant Chrono to be chased by several people. They find shelter in a secret room where Ryutarou discards his Vangua-rou costume and reveals his true appearance. Chrono and Ryutarou have their cardfight in another room equipped with GIRS. Before the battle could conclude, Mamoru shows up, after finishing the event in which he fought a randomly-selected attendee (Tsuneto), and chastises Ryutarou. Chrono and Mamoru finally meet and get acquainted with each other; Mamoru requests to fight Chrono, but he declines because he wishes to get stronger first.