Finally, Precision Machine pitcher, Yang and Akikawa Academy's deathmatch with Seido for the position in the best 8 of the tournament comes to its climax! They come to the seventh inning with neither side giving an inch... Seido, forced into a shutout, finally lets their maneuverability go free! Both teams strive for wins with their own important reasons in mind!! And at the same time, a dark horse that sends ripples through the tournament arises. Will the road to Koshien be enveloped by this new commotion?!