A third-round game at the Tokyo spring tournament is attracting a lot of interest. Inashiro Industrial, the runner-up team from last year's summer tournament with this generation's best southpaw, Mei Narumiya, is facing Yakushi, a quarterfinal finisher from the spring invitational. How have they grown after their winter training and experience in the invitational? Has Narumiya recovered after his disappointing run in the fall? This heavily watched game is about to get under way!

The game against Hakuryu, a quarterfinalist in the Invitational, is entering the final stretch. What has Sawamura felt and learned facing a nationally ranked powerhouse school? What did Furuya feel and learn watching Sawamura pitch the game on his own? Both pitchers have mixed emotions. Meanwhile, Mima, who also wants to play professionally, has taken an interest in Miyuki.

Returning from his injury, Furuya joins a game with the second string. Seeing Sawamura shine in the first string's game, Furuya mulls over the words Kataoka wrote in his journal. Meanwhile, in Yamanashi prefecture, Seido's rivals Yakushi, Ichidai Third High and Inashiro Industrial compete in intense games for the spring Kanto Tournament. Sawamura and his teammates watch intensely as their rivals become stronger.

Sawamura has demonstrated his remarkable growth during the practice games, and people have taken notice, especially his outstanding performance in the Hakuryu game. His pitching has inspired Furuya, too. In the second-string game, Furuya's pitching showed meaningful progress. His emotions transfer into the ball.

On the train home after the Tokyo Invitational game, Miyuki meets Narumiya and gives him some honest advice. They promise an intense battle in the summer tournament. Meanwhile, the fierce game against Seiho on Seido's practice field has come to an end. The Seido nine reflect on their challenges to address, including those from their loss to Yamamori Academy. It's now time to decide the twenty players who will make the roster for the summer tournament.

The summer tournament is finally under way. Seido's first opponent, Yura Sogo led by Coach Sasaki, is preparing themselves thoroughly for the game. Narumiya starts the first game for Seido's rival, Inashiro. Even though their opponent is no match for them, Inashiro never wants to show any sign of weakness in a baseball game. In stadiums around the country, powerful schools begin their battles. And now it is time for Sawamura to take the mound for the first time as ace...

The summer tournament is in full swing and Seido is playing their second game against Hachiya Oji and their skilled second baseman Kawabata. Furuya is the starting pitcher and has recovered nicely, throwing howling fastballs in the first inning. But Hachiya Oji has been expecting them, and third batter Kawabata hits one which nearly sails into near center field, but Haruchi and Kuramochi are there to stop it!