Senbatsu High School Baseball will feature three second-round games on the fourth day of the tournament.
The first match will be between Akita's Noshiro Shoyo High School and Tochigi's Ishibashi High School, who will compete in the 1st century frame.
Shoyo Noshiro has a knack for pitching with ace pitcher Daichi Morioka throwing over 21 kilograms of straight pitches and a variety of changeup balls with good control, and he pitched well in an official game last fall with an ERA in the 140-run range.
Ishibashi, who is making his first appearance throughout the spring and summer, is led by No. 1 Ogane Rihisa, whose batting average greatly exceeded 6% in official matches last fall, and has an average of 1.1 runs per game, the fourth highest among participating schools in this tournament.
The second match will be between Ryukoku Taiheian High School and Nagasaki Nichidai High School in Kyoto.
Ryukoku Taiheiyasu, who is making his 2nd appearance, the most in the tournament, had a team-leading batting average of 42.6.1 and 5 RBIs in an official match last fall.
Nagasaki Nichidai, who are making their fourth appearance in two consecutive years, led by center fielder Kiichi Toyoda, recorded double-digit hits in three games at the Kyushu Tournament last fall, and finished as runners-up.
The third match will be between Sendai Ikuei High School in Miyagi and Keio High School in Kanagawa.
Sendai Ikuei will aim to win the championship following last summer's national high school baseball championship, which became the first Tohoku team to win the championship.
There are many players who experienced last summer's championship as a mainstay, such as right-handed pitcher Takahashi Hiroki and No. 3 Yo Saito, who have a knack for control.
In particular, the pitching staff has pitchers such as Takahashi who can throw more than 4 kg straight, and the thickness of the layer is still alive and well this spring.
Keio shines for its long-hitting ability, hitting 140 home runs in an official game last fall, which is the highest number of participating schools in this tournament.
There is no break in the batting lineup, centered on Katsuji, the second son of Kazuhiro Kiyohara, who once played Koshien at PL Gakuen in Osaka, and Kato Ugo, who hit three home runs, which is the team's top in his second year.
Ikuei Sendai's pitching staff and Keio's powerful batting line will hold the key to winning or losing.