Aoizaka High School Baseball Club

After a crushing defeat six years ago, a group of friends promise to take their friend Suzuo to Koshien. Now first-year high school students, they reunite to pursue that goal, with pitcher Kitaro Kitaoji leading the team. Suzuо becomes their manager, while Kitaro relies on his signature left-handed submarine pitch. Together, the friends set out to see whether they can make good on their promise and go all the way to Koshien.