Badminton team member Mizushima Ryo dreams of attending Yokohama Minato High School with the player he admires, but he had given up on that dream because he thought it was impossible. But one day, the high school's badminton coach Ebihara visits Ryo--

Thanks to Ebihara, Ryo gets to participate in the badminton team's practices before entering high school. His practices at Yokohama Minato with students recruited by Ebihara from other schools and his idol Yusa begin!!

Five-time Inter-High champions Saitama Futaba Academy arrive for their practice match. However, the third-years that make up the main force of their team are absent. When they realize they've been underestimated, the members of Yokohama Minato are eager to fight. However, once the matches begin, it becomes clear that the difference in skill is great, and the first-years are defeated soundly. Among the Saitama Futaba players is a standout player named Date. With the skills to defeat even Hongo, he apparently has some history with Yusa...

The training camp from hell begins. Ryo decides he'll make use of his perseverance, which is his greatest strength. As Ebihara taught him, he watches closely and thinks carefully as he follows the training schedule. While doing his laundry at the end of the first day, Ryo is deep in thought about Yusa and the other upperclassmen. They build their stamina regularly and seem perfectly fine even after a hard day of training. While Ryo is contemplating how impressive they are, Akira comes along. He seems to have figured something out and tells Ryo a certain story about Yusa...

The prefectural tournament begins. Yokohama Minato is off to a smooth start as they win their matches. However, Matsuda is shut out by Hojo High School's Okazaki in the quarterfinals. Okazaki burns with a fierce fighting spirit. This is his last year to get revenge on Yusa. His sharp and determined eyes have the intensity of a beast pursuing its prey. It's up to Ryo to avenge Matsuda as he takes on Okazaki in the semifinals. Ryo attempts to ignore Okazaki's provocation and focus on playing his way, but...

The Inter-High has finally begun. Yokohama Minato makes steady progress and advances to the semifinals. Ryo nearly breaks under the pressure, but he overcomes it with help from his friends. Then the semifinals begin. Their opponent is Hirayama. Misaki is eager to play against Yusa in order to conquer his past trauma, but he doesn't get his wish and is instead matched up against Ryo. Ryo faces Misaki's resolve and passion and meets them with all his heart and soul!!

At last, the finals have begun. Yusa immediately begins attacking at the start of the match. He is clearly rushing the game. He must still be tired from the doubles final. Ryo settles on a strategy of running Yusa around the court. He eventually makes an impressive shot, but Ryo's careful observation of Yusa's movements reveal to him that that was no ordinary mistake. Yusa is protecting his right leg. Ryo is determined to win and goes on the offensive, targeting Yusa's weakness.