A compilation film of the Ansatsu Kyoushitsu TV series, featuring anime-only epilogue scenes not originally in the manga.

Assassination Classroom the Movie: 365 Days' Time

In the alternate universe set in an RPG world, the students of Kunugigaoka Junior High School are heroes under training and students of Class 3-E are those with bug, making them weaker than other heroes.  They ae tasked a defeat Koro-sensei, a Demon King who intentionally teaches them so they can defeat him one day.