Ace of the Diamond Temporada 3 Episódio 30

Sawamura is the starting pitcher in the practice game against Chibas powerhouse, Naruta Industrial. How will his pitches fare against their batters known as the Southpaw Killers? It will be another trial for Sawamura, who must handle another big game. Plus, Naruta Industrial and Kuramochi have a previous relationship. What happened between then?