Diamond no Ace OVA

Seidou High's baseball club is large enough that every player carries a story beyond the starting lineup. Ryousuke Kominato and Youichi Kuramochi have become one of the team's most reliable defensive combinations, but their skill was built through rivalry, trust, and the long path that brought each of them to Seidou.

Haruichi follows in the shadow of his admired older brother Ryousuke, while Eijun Sawamura shares a room with Kuramochi and learns that the upperclassmen he looks up to also had uncertain beginnings. Looking back at those earlier days reveals the ambitions, friendships, and private struggles behind players who now seem completely at home on the field.