Every high‑school baseball team dreams of qualifying for the legendary Koshien Stadium Tournament. For the first time in years, Seido High School finally has a chance, thanks to star player Gorilla Matsui who has given the team a real opportunity to succeed. Principal Kocho is delighted at the prospect, but the head teacher informs him that the opening game will be against Gedo High School, a team infamous for brutally killing all their opponents. Kocho instantly loses hope, both for his students' safety and for winning the tournament.