Koro-sensei Q!

An empty glass on the windowsill. A letter without a signature. The students of Class 3-E have a new mission, but this time, their target is nowhere to be found. Instead, they must navigate a bizarre, game-like world of puzzles and absurd challenges, all while their peculiar, tentacled teacher offers cryptic advice. This 2016 animated comedy spins the original premise into a standalone quest of camaraderie and clever problem-solving, blending frantic humor with the series' signature heart. It’s a chaotic side-story where the greatest test isn’t assassination, but teamwork under the strangest of circumstances.