On their way home, Yura and Sonora come under attack by a sniper using an illegally modified airsoft gun firing dangerous rounds. As Yura attempts to go after the sniper herself, Sonora injures herself protecting Yura from running into the path of a car, leaving her with a twisted ankle which puts her out of the tournament. Feeling guilty, Yura becomes determined to take Sonora's place in a the tournament, spending all of her free time looking up strategies and putting the others through an intense training regime. Upon arriving at the tournament, where they meet Seikou Academy's full team, Yura becomes suspicious that Rin might be the sniper.

The tournament begins, with teams tasked with obtaining flags and bringing them to a safe zone to avoid elimination. Thanks to Yura's strategy, Stella manage to take Seikou's flag and pass the first round. As the team progresses through the various rounds, Yachiyo becomes irritated by Yura constantly scolding Rento. By nightfall, only Stella and Meisei remain in the tournament. Before the final round, Yura goes to see Rin, whose cold words only serve to make Yura more determined to beat her. As the round begins, Yura goes up against Rin, who runs out of bullets. Yura then gets hit by another person's shot, but chooses to fire at Rin anyway, leading Stella to be declared the winners.