Boku no Hero Academia: Training of the Dead

僕のヒーローアカデミア トレーニング・オブ・ザ・デッド

The story takes place after the field training arc in the second season, and revolves around a practice session between Izuku's class and Isami High students at Yuuei Academy. Note: This OVA was bundled with the 14th volume of the manga