The student council president of the Miyaji Academy High School Division deems Aichi's Cardfight Club to be unnecessary for the school and orders the vice president, Suwabe, to devise on how to abolish it. Elsewhere, the Cardfight Club finds an empty classroom to serve its official headquarters. Then, the school's American football team, the Miyaji Vipers, barges in and takes the club outside to the academy's sub-ground where the Vipers' quarterback/captain, Ikki "the Catapult" Kongou, challenges Aichi to a cardfight, with the former appropriately using a Spike Brothers deck. This is an elaborate plan set up by Suwabe to have Ikki defeat Aichi and thereby crush the Cardfight Club members' spirits into not wanting to continue the club.
Ikki uses strong Limit Break effects of the latest Spike Brothers to push for victory, but Aichi successfully defends and makes it to his next turn. Aichi then utilizes both the Break Ride of Solitary Liberator, Gancelot and the Limit Break of Liberator of the Round Table, Alfred to overpower and beat Ikki. This loss causes the football team's female cheerleaders to dump Ikki and the Vipers, which devastates them. Later, Naoki asks Ikki's motive for challenging the Cardfight Club, to which he answers that while he was bribed by the student council with a bigger budget for the football team, he mainly did it for the sake of playing against a strong cardfighter like Aichi. The Vipers then take their leave, and the Cardfight Club is more motivated to find a fifth member to have the club become official before the student council acts again.
