If you loved Koro-sensei Q!, try Assassination Classroom the Movie: 365 Days' Time
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Seiji Kishi, and they both carry the playful mood tag, and they sit in Animation / Comedy territory. If that's the register that drew you to Koro-sensei Q!, the second film will land in a comparable space — through a different lens.
playful
What Assassination Classroom the Movie: 365 Days' Time is
A talking octopus grades tests while dodging half-hearted death threats. Nagisa and Karma cram for finals with the fate of the planet on the line.

