The national tournament preliminary rounds begin! After an explanation of the tournament rules by Ultra Rare, Team Q4 discovers that they are put in the same block as Team Foo Fighter Apex Limited Four, Ren Suzugamori's team and previous winners. To his great surprise, Aichi discovers that Kai not only personally knows Tetsu, one of AL4's members, but he is also acquainted with Ren. They are soon forced to forget about AL4, though, since the first round begins and pits them against Team Jurassic Army, a group of militaristic cardfighters using the brutal Tachikaze clan.