Assassination Classroom #20

Yusei Matsui closes out his series with a cover that feels genuinely moving — Koro-Sensei's unmistakable wide grin and dark eyes emerge from a lush green hillside, framed by sunlit trees, blooming wildflowers, sunflowers, fluttering butterflies, and a brilliant rainbow arcing across a bright blue sky. The image is warm and almost pastoral, a striking contrast to the series' high-stakes premise, and it carries the quiet emotional weight you'd expect from a final volume. A fitting send-off from Shonen Jump Advanced for one of the most inventive teacher-student stories in manga.