Ryosuke Yamada (Hey!Say!JUMP) stars in the movie "Assassination Classroom," an film adaptation of the manga of the same name. This DVD single includes its main theme song, and it is performed by Sensations, a mysterious group formed by nine people who sing & dance. This edition includes two music videos for the title song ("Battle Mode" & "Operation Mode") as well as making-of ("Passive Side" ver.). Comes with a 12-page booklet. *Main cover artworks corresponding to the limited and the regular editions are different from each other.