After winning their match, Seido stays behind to watch Manaka's pitching in hopes of gaining a slight advantage in the quarterfinal game. Tanba remembers his past ties with Manaka and swears to return in that quarterfinal match. However Yakusi has made many changes to their lineup, including three first years in the 3, 4, and 5 spots. When the first of these first years arrives, Raichi Todoroki, he nails Manaka's best fastball out of the stadium to give his team the early 1-0 lead. Ichidai is forced to make an early pitching change, with Manaka moving to the outfield, and the game becomes a slugging contest. As inning 5 approaches, Manaka demands to return to the mound so his team can move on to the quarterfinals. Ichidai gives in, and Manaka returns with better control than before.
Après la qualification de Seido, c’est au tour de leurs rivaux d’Ichidaisan d'entrer en scène. Face à la modeste équipe du lycée Yakushi, l’accession aux quarts de finale devrait être une formalité. Mais, au baseball, rien n’est jamais joué d’avance.
세이도의 다음 상대가 확정될 이치다이산과 야쿠시의 경기. 대부분 사람들은 강호 이치다이산의 낙승을 예상했지만 그 예상은 처참하게 깨지고... 이치다이산의 에이스 마나카가 무너진 가운데 경기 양상은 한치 앞을 내다볼 수 없는 난타전으로 흘러간다.
青道在四分之一决赛前，观看市三大的比赛。市三大的对手是没什么名气的药师，那队伍与比赛前表现的完全不同，一眨眼就被药师的一年级抢走了比赛主动权，使比赛的气氛发生了改变…
