Is 1-nen A-gumi no Monster Finished? Yes — Complete in 16 Volumes
Yes — 1-nen A-gumi no Monster is complete. It ended in Japan with 16 volumes; the final volume came out in June 2026.
Everything below reflects the Japanese edition — the source of truth that runs months or years ahead of English releases — computed from official publication records.
Volumes in Japan: 16 (latest: 1年A組のモンスター 16, 2026-06-22)
Next volume in Japan: not yet announced in Japan.
Status: Yes — 1-nen A-gumi no Monster is complete. It ended in Japan with 16 volumes; the final volume came out in June 2026.
Serialized since: 2019
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