The practice match against Date Tech before the Spring Tournament is about to come to an end. Each member of Karasuno tries to better themselves personally. Will they be able to acquire a new weapon and evolve as a team?

The match with Inarizaki High at the Spring Tournament finally begins. Karasuno is overpowered by the supreme Miya Twins and the Inarizaki cheer section taking over the venue. It was then that a certain someone arrived in the stands...

Because Karasuno's plays become messy and the match's rhythm gets thrown off, they change setters. Sugawara goes onto the court in place of Kageyama and because he's always seen things from outside the court, he says he knows what's going on, and Karasuno starts their counterattack. Meanwhile, after seeing the match from the outside, there's a change in Kageyama as well.