ダイヤのA（Ace of Diamond）【28】

センバツ出場を懸けた秋大本選がいよいよ始まった。青道初戦の相手は、東東京の常勝軍団・帝東高校。一年生ながら別次元の投球をする帝東エース・向井に対し、エースの自負に燃え、好投を見せる降谷！　両者譲らぬ投手戦となるも、降りしきる雨が、降谷、そして青道ナインを苦しめる‥‥。

Aki Odori who won the Senbatsu participation has finally started. The opponent of Aomi's first battle is East Chiken's Tachiken Corps · Tei Tō High School. To Akira Mukai who is throwing another dimension while being a first year student, Atsuya who burns with the ace of pride and shows good pleasure! Although it will be a pitcher fight both of them will not yield, the rain that descends, the Yaniya, and the blue road Nine suffer.