OVA bundled with the 14th manga volume. Story about a joint practice session between Izuku's class and Isami High students at Yuuei Academy, takes place after the field training arc in the second season.
Reviews
NipPierce
Wow, this is a REALLY bad movie!
TinsHeadline
Touches You
Sexylocher
Masterful Movie
Brainsbell
The story-telling is good with flashbacks.The film is both funny and heartbreaking. You smile in a scene and get a soulcrushing revelation in the next.