As the Karasuno High School Volleyball Team is trying to get ready for nationals, they receive word that Kageyama has been invited to the All-Japan Youth Training Camp. On top of that, Tsukishima had been invited to the Miyagi Prefecture Rookie Select Training Camp. Despite not being invited to the Miyagi Prefecture Rookie Select Training Camp, Hinata decides to show up anyway?!

Just one more month until the Spring Tournament. Hinata crashed the Miyagi Prefecture Rookie Select Training Camp and got to stay as one of their ball boys. While the boys are doing a practice match, the third-year players from Shiratorizawa show up.

Hinata, Kageyama, and Tsukishima all come back from their training camps, and Karasuno had lined up a training match against Date Tech, the school with the strongest blockers in the prefecture. But after coming back from the training camp, Kageyama seems to be acting a bit strange...