Edition contents & overlap
Assassination Classroom Box Set: Volumes 1–21
Published 9 September 2026 · Sources checked 2026-09-09
Check the 21-volume English Assassination Classroom set against a partial or mixed collection of singles.
Mapped coverage: The English Complete Box Set containing volumes 1–21. The mini yearbook is listed separately from story coverage.
Creator: Yusei Matsui Publisher: VIZ Media
Documented contents
What each edition covers
Numbering: Assassination Classroom English single-volume numbering. It describes numbered story units only; separately documented extras remain separate.
| Edition | Covered volume | Format | Language / market | ISBN-13 | Extras | Source |
|---|---|---|---|---|---|---|
| Assassination Classroom Complete Box Set | 1–21 | Paperback box set | English / US | 9781974710140 | Full-color mini yearbook | Publisher source for Assassination Classroom Complete Box Set |
Source records were checked on 2026-09-09. A missing ISBN is reported as not verified; unknown extras are never inferred.
Mapped coverage
1–21 · 21 numbered volumes across 1 documented editions. This is the range in this map, not a claim that the series is complete.
Your shelf
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The English Assassination Classroom Complete Box Set contains volumes 1–21 and a separately listed full-color mini yearbook. This page maps the 21 numbered story units. The yearbook does not become a twenty-second manga volume.
Two shelves, two different purchase questions
If you own volumes 1–7, the set adds 8–21 and duplicates seven: fourteen new units. If you own 1–7 and 15–21, the gap is only 8–14. Both shelves include the same first book, but the second reader needs seven new units rather than fourteen.
Mark only the volumes you have, set the target, then inspect the new and overlapping lists. You can save the selection on this device or export a plain checklist. The result does not claim the full box is the cheapest way to fill those gaps.
Keep the yearbook separate from the count
The authorized distributor describes the yearbook as character art in different styles and contexts. It is a documented extra, not evidence of another numbered story volume. If your shelf already covers 1–21, the box has no new story coverage in this map. Whether you want the extra is a separate decision.
The set ISBN is separate from the ISBNs of its individual books. For a package-identity checklist that explains the difference, use ISBNs and manga edition identity. No cover image or physical-quality judgment is needed to make the documented volume comparison.