Animation included with the PLUS ULTRA version of the Boku no Hero Academia THE MOVIE: YOU'RE NEXT Blu-ray/DVD release. The OVA is an adaptation of the "A Piece of Cake" one-shot from the Vol. Next booklet that was given out during the movie's theatrical run.
Watch Boku no Hero Academia THE MOVIE: YOU'RE NEXT - A PIECE OF CAKE episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.