Is Octave Finished? Yes — Complete in 6 Volumes
Yes — Octave is complete. It ended in Japan with 6 volumes; the final volume came out in January 2011.
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: 6 (latest: オクターヴ vol.6, 2011-01)
Next volume in Japan: not yet announced in Japan.
Status: Yes — Octave is complete. It ended in Japan with 6 volumes; the final volume came out in January 2011.
Serialized since: 2008
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